(I haven't read the book)
I am a usually cautious about generic claims how rules or hierarchy turns you into a mindless gear in The Machine.
It is not that black and white and, honestly, self-taught independent thinkers are more likely to reinvent the Perpetuum Mobile than to make a breakthrough in String Theory.
But passing tests is indeed a very specific muscle to train. And has nothing to do with reasoning or researching - the skills which we are supposed to look for.