Just giving my quick two cents on this, but I have to disagree. After years of wanting, campaigning, and arguing for the character, I don't really care which of the draconic designs they go with for the character, I just want the character playable. At the end of the day, it's still the same purple dragon that torments Samus on a weekly basis, it's still the same character that many wanted for years and would be ecstatic to see playable, and that doesn't change because he decided to bulk himself up. So to me, I'd much rather have him in his Other M design then not at all.
Plus, just like with Samus and Zero Suit Samus, there's always the possibility that Sakurai will update his design to make him more appealing.