No, it’s not. You don’t really get psionics and their appeal, I get it, it’s cool, but try not tell other people why they shouldn’t want what they want.
I’ll give you an example. What if the 5e wizard didn’t have a spell book class feature? What if spellbooks weren’t mentioned at all in the class’ description? Do you think wizards fans would be fine with that? Would they agree with me if I told them “eh whatever, it’s fluff, just houserule a spellbook at your table”?
No they wouldn't. Spellbooks are an important part of the wizard's identity, and the mechanics have to reflect that. No somatic or verbal components is an important part of psionics. In 3e they had "displays", instead. Auditory, material, mental, olfactory, or visual cues that a psionic powers was being used. That's closer to the psion's identity.