Reading all your post, whether or not KH2 has more flash over substance it had great gameplay and that's what we want. Magic did play a role for range and some tactics but it was less than KH1, that is true. KH2 was a refined version of KH1, much like ME2 was refined of ME1.
But I'm not really sure about FFXV, I'm losing faith that SquEnix can produce an on time and good FF game anymore. FFXVI and FFXVII should all be in development as well but I know they aren't.