Yes, I find a lot of guitar books and training to be quite weird and backwards with all the classical stuff, notes etc. A lot of extra stuff is piled on that is just fluff. People with just some basic analytical skills could learn a lot, if taught a little differently, about how the structures work instead of the endless "push this string here". Maybe it's because the tradition is just to play music other people wrote, not to compose it yourself. That seems to be even worse with piano. At least people are expected to have some skill in improvising solos with guitar...