Scars Unseen
Hero
I don't really see mechanical complexity for its of sake as a plus
This is pretty much where this discussion seems to break down. I can't recall a single person asking for mechanical complexity for the sake of mechanical complexity (in fact, many of the suggestions and asks in this thread are objectively less complex mechanically than magic as it exists in D&D). People are asking for mechanical difference because they don't see the system of magic in D&D as being sufficient to meet their idea of what psionics should play like.
And no, I don't see a portrayal by a professional role player as refuting that opinion. I can role play anything any way I want, but that doesn't mean I'm satisfied with the result. You don't even know if they were satisfied with the result; you only know that they gave a convincing performance.