Vael
Legend
The only history of psionics that was constant in all editions was that psionics wasn't spells.
Eh?
I only started with 3.5, but if you look at 3.5 psionics, it was pretty similar to spells. Different jargon (displays instead of components, Psychokinesis instead of Evocation), but the formatting was otherwise pretty close. To the point where one of my annoyances with 3.5 psionics was the bevy of "Psionic [Spell]" powers.
Same with 4e. Psionic powers had the slight change in using augmentable at-wills to replace encounter powers, but still similar formatting. And 4e had such a bloat of powers as a result of every class having their own suite.
And, I guess for me, what the lesson of 3.5 and 4e is is why reinvent the wheel? If all it takes is having a Psion just casts spells without components, then why write out a Psionic Fireball, when they can just use Fireball minus components?