Playing and training with/against top pros, but not much game time, versus sheer reps against weak competition, and less training supports can be argued till the cows come home. Each has merits.
But in Wright's case, it was open secret that he has shown ZERO progression in juniors in his draft year. Sending him back into the same environment and hope for a different result is the definition of insanity. Not saying that Kingston is so terrible at development, but I think it's clear it just doesn't work for Wright.
One could possibly hope that things could be better for him in the OHL outside of Kingston. But that's the conversation for the time when he actually is no longer in Kingston. He can train, and occasionally get into an NHL game, and maybe go to the WJC, while he is waiting for that door to open.