So JWs do all that supposed study, and they can't defend the Bible and their theology.
That's one of the reasons the GB is so afraid of "higher education".
Take someone who has spend 18 years of his or her life-- spending 6+ hours a week listening to Bible instruction at the KH, plus Circuit Assemblies, plus Regional Conventions, plus personal study, plus Family Worship, plus field service-- all that time, all that "reasoning", all that indoctrination and building of faith.
Take that person and put them into one "Intro to Philosophy 101" their Freshman year in a university. It's a class that meets 2-3 week, for 50 minutes, for a total of 12 weeks. By the end of the semester (less than 36 hours of total class time) and suddenly 18 years of all that JW instruction goes out the window.
36 hours vs. 18 years...and the 36 hours wins most of the time. (Luke 6:49) Wonder why.