I don't mind prereqs from other paths. However this one seems a bit much.
War Colleges requires Higher eduction. Sure makes sense. However Higher education is at the END of the civics tech tree, and War colleges is in the middle of the war tech tree. I really don't think a tech mid way through one path should require you to be at the end of another.
While you only need 6 war techs to research it.. it requires no less than 11 civics techs. Shouldn't it be on the civics tree at that point
Edit: I could see it if there was a similar tech in each tree, maybe there is and I haven't noticed. IE a tech on the magic path that requires most of the warfare path, and a tech in civics that requires most of the magic path.