All the high kicking is mostly WTF practioners. ITF schools don't neccesarily put that much emphasis on high kicking, or for that matter aerial kicks in general. I have trained ITF since august 2014, and haven't been taught any aerial kicks, outside of flying side kick (which is a nice kick) and the jumping back kick. Lots of handstrikes, heavy emphasis on patterns, conditioning.
Not true in the least. You're extrapolating from your own extremely limited and short term training and assuming that it's true elsewhere. Or even that what you've been taught, as a very new student, applies to what more advanced students have been taught. A generally foolish notion. Students at your level are not taught complicated kicks in our school, either.
I learned far more about fancy aerial kicks in the ITF schools I trained at than the KKW schools. But I'm quite willing to believe that this is because my ITF training was when I was young, and thought triple back flips with a double twist kicks were cool, while my KKW and MDK training has been as an adult who is more interested in practicality than flash.
And your use of "WTF practitioners" is still incorrect, as has been amply proven. You mean KKW, so it would be smarter to simply SAY KKW in the first place.