This quote from another source says exactly what my belief is as to the JW view of education.
People with higher intelligence tend to be harder to control for various reasons. First off, they are able to think for themselves and cannot be as easily controlled through rhetoric, propaganda, emotional manipulations and intimidation. Stupid people are easily manipulated and will go along with anybody who has an easy answer for them or easily digestible rhetoric to follow.
I always seemed to have thought that most JW's were a bit mentally challenged and nothing has changed my opinion.
One time my father and I were conversing about some of the things that we saw in the JW's that seemed "off". I mentioned that I had been told by an elder, "You THINK to much!" My father replied, "No, they don't think ENOUGH!"