No, "we're" not willing to say that. However, judging from the list I posted, the 90+ power rating hitters are still jacking the ball out the park at league leading rates. So it must be some other type of 90+ power guys who are having issues in large numbers. If I were to guess(from experience with what I felt were overperforming players), I'd say it's the low contact/splits guy that is struggling. If I'm wrong, tell me.
But picking one player with similar ratings to the players I listed and saying "This guy isn't hitting homers" is stupid.