@[email protected] I think that was a large part of his point - he was writing in the 70s so that was reasonably radical and it's not like there aren't still a lot of misconceptions about 'giftedness' (such a terrible term, as you say). I've seen his work and the follow on work that built on it (Silverman etc) used to push back against the idea of the 'gifted genius', mature beyond their years, striding forwards with logical certainity because being intelligent obviously means 'being able to do more of the same thing overbody else can.'
@[email protected] He was one of the first people to point out that's not really how humans work; 'high potential'/'profoundly gifted' humans don't think like everybody else more quickly, way instead tend to have more bandwidth, make more connections, make intuitive and emotional jumps that they post-hoc justify afterwards - all the things you're saying. Just with some scientific papers to wave in the face of professionals and teachers who are determined to double down on 'that child can't be bright, they aren't perfectly behaved!'.
