I prefer the WotC designers consult with the majority of players when designing products. This democracy sotospeak doesnt always go my way. But the products are more robust and more players either love or can live with these products. If more players are playing then the tradition of gaming stays healthy and passes on to the next generations of gamers.
Rarely, but it seems to happen, the designers did something without consulting the community at large. For example, the decision to have all classes start subclasses at level 3 but the other subclass levels lack standardization, seems to be without community ok. I think they thought the backward compatibility was somehow more marketable. I prefer they instead listened to see what the D&D players wanted.
In the case of the Psion class, it was the community being difficult, and the designers being patient and trying figure out a way to thread the needle. The Psion class is solid, and looks fun to play.
Sometimes a design seems inevitable. There is a difficulty and will resolve in a future design. For example, the six abilities need rethinking, and the bonus of +4 needs to eliminate the score of 18. But if the majority of D&D players arent ready to let go of this archaism, then they arent ready yet. What can designers do?
The game is better when the designers are the servants of the D&D players, rather than the masters.