I also supposed that psionics powers were in fact specialized on mind-affecting stuff (targetting both enemies, friends, and self) and were the best at that. It is also however possible for them not to be the best but just on par, if psions are intended to replace wizards and sorcerers in some settings rather than coexist.
That is part of my point.
Psions that replace wizards and clerics should not be core. Replacements and alternates are for modules.
Psions that serve a different purpose that clerics and wizards do not fill could be core. Completely unique archetypes are allowed in core.
Mind wizards, no.
Super psychics, okay.