That was basically my conclusion, they they do not really care whether they miss clear improvements as long as they do not miss any absolute duds.
That the playtest is there to avoid disaster, not to identify improvements. WotC couldn’t care less about missing a dozen improvements as long as no duds slipped through.
If you agree that this is the point and that is all it should do, then I guess there is nothing to debate, I just wished it aimed higher than that. At that point I am not interested in being part of it