That is a good article. I wish he'd said more. Often have I traced the line of decay stemming from methodism to modern experientialism and Dispensationalism that sometimes reaches heresy. Christianity was predominantly creedal prior to Wesley. Wesley is not to blame per se because a number of factors of the 1700s played into the problem of experientialism (rural environs, lack of Bibles, lack of institutional accountability, etc.) but Wesley's methodism leading to experientialism was directly influential on the restoration movements of the 1800s and the huge explosion of diversity (i.e., sectarianism) by which what creeds were applied were unique to the sect/cult in which a person found himself. When methodism/experientialism got combined with the notion of a corrupt church, a pure (earthly) alternative, and apocalypse, the stage was set for Pentecostalism (more sectarianism). Scofield publishes his "study" Bible and suddenly hundreds of thousands of people become their own teachers learning Dispensational theology without even knowing it is not mainstream, nor orthodox. By the time you and I meet Christ few know who the early contemporaries of Wesley, Campbell, Miller, Darby, Smith, etc. were, much less what they taught. Edwards, Whitefield, Spurgeon, the Hodges, Warfield, etc. are all much "meatier," more scripturally substantive writers. The fact that there exists an alternative to the covenant model (which is firmly and explicitly stated in scripture) is something I suspect most nowadays don't know or understand. For the first 20 years of my faith I thought Hal Lindsay was orthodoxy and EVERYONE believed like he and me. I thought that was Christianity!
Renoe is correct. Christians do need to read but there are two "addendums to understand: 1) it matters what a believer reads and 2) discernment is necessary.
In regard to what a person reads, the first extrabiblical sources I read were Schaeffer, Nee, Lewis and Tozer (for the most part). All godly men, all illuminating writers. Of them, only Schaeffer connects us back to both secular and sacred sources with any substance, and the only reason he does that is because of the very condition Renoe is citing and the effect ignorance had on society and culture (largely due to Dispensationalism): the silent Christian. Because of Schaeffer I started reading the ancient Greeks and western philosophy, which in turn lead to Augustine, Luther AND Erasmus, Voltaire AND Wesley, Darwin, Marx, Freud AND Kuyper, Schweitzer, and Van Til, etc.
Which brings me to my other point, that of discernment. A believer in Christ must know his/her calling and something of his (God-given) strengths, limits, and calling, and the benefits and liabilities of it all. As I and a few others have recently noted in other current threads the disciples were given the "great commission," and by extension the mandate to preach the gospel is a responsibility for all who lay claim to the name of Christ but being an apostle is not synonymous with being a disciple. Christ gave some to be apostles, pastors, teachers, etc., and all. All are called to give and explanation for the hope within them but we're not all shepherds. Most of us are sheep, not shepherds. I've spent most of my Christian life in academia and the social services, both environments rife with liberalism and secular humanism. My need for the kind of knowledge and preparedness Renoe is writing about is much different, greater in some ways than that of most Christians. My wife has little need for what I know and do (and she's quite willing and able to tell me so
). Reading sources like Marx (or Red Pill) can also be dangerous for some in the faith, especially for those who are not mature in Christ and practiced in the Spirit. On top of the many problems within Catholicism we are seeing for the first time in Christian history a Marxist running the single largest religious institution in the world. It is amazing the world has any spiritual health at all. We can attribute that to the work of God in His people.
The last "tweak" I might consider to Renoe's article is that the faculties of reason are much more important than reading. Of course, the two are not mutually exclusive but God did not make everyone with a thirst for reading. He did not make you all like me
. He did not make everyone with a tolerance for exposure to outside sources. Peter was the apostle to the Jews, and Paul was the apostle to the Gentiles. Each had been prepared for that purpose. If the tradition is true holding James, the brother of Jesus, as the head of the apostolic council, that is an amazing thing because reason would tell us Paul was the guy for that job; he had all the formal bona fides. Therefore, those who do as Renoe recommends and read must, in turn, distill the relevant content and teach it to others somehow and those doing the learning MUST have the faculties - the knowledge of scripture, spiritual maturity, and faculties of reason to test everything they hear. Not everyone can or will do the kind of reading required by Renoe's position, but everyone can learn discernment.
). Reading sources like Marx (or Red Pill) can also be dangerous for some in the faith, especially for those who are not mature in Christ and practiced in the Spirit. On top of the many problems within Catholicism we are seeing for the first time in Christian history a Marxist running the single largest religious institution in the world. It is amazing the world has any spiritual health at all. We can attribute that to the work of God in His people. 
. He did not make everyone with a tolerance for exposure to outside sources. Peter was the apostle to the Jews, and Paul was the apostle to the Gentiles. Each had been prepared for that purpose. If the tradition is true holding James, the brother of Jesus, as the head of the apostolic council, that is an amazing thing because reason would tell us Paul was the guy for that job; he had all the formal bona fides. Therefore, those who do as Renoe recommends and read must, in turn, distill the relevant content and teach it to others somehow and those doing the learning MUST have the faculties - the knowledge of scripture, spiritual maturity, and faculties of reason to test everything they hear. Not everyone can or will do the kind of reading required by Renoe's position, but everyone can learn discernment.