Remathilis
Legend
This has always been an issue of psionics being shunted off to the "optional" side of D&D. D&D wants to have Psionic effects (telepathy, telekinesis, mind reading) but people either complain about it being too "sci-fi" or not fitting D&D's fantasy concept (artificer has the same problem) so the wizard and other casters get the fun toys of the psion and when it comes time from the psion to exist as extra, their spot at the table is gone.Maybe if psionicist had a seat in the PHB, there would be a more prominent role for them.I feel that the latter is more important. "This guy does different things than the wizard." It would feel different in the story. Slightly different mechanics that produce the same effects to me just seems like an unnecessary complication. It does not produce a difference in the narrative.
Of course the issue with bespoke effect is that D&D spellcasting is so versatile, and basically all classic "psionic" stuff is already covered by magic. Telepathy, telekinesis etc are all doable by spellcasters. Now if we were designing things from the ground up, this would be easy to fix: simply do not give those effects to the other classes. But when we are trying to add this new class into an already existing game that option is not available. This is why satisfying prion is so hard to design; it is hard to give them a niche, as the existing magic classes can already do everything.
(Aside: I think the wizard is too overstuffed as is and barely leaves enough space for any other arcane class. The only reason it isn't the only caster in the game is the hard line on healing and animal magics to keep clerics and druids with a niche. I'd rather than seven unique arcane classes than the "one class to rule them all" magic-user).