This are my exact thoughts about the Ridley situation, he made a really big (no pun intended) effort to making him really close to playable.I think it's time to give it up hun. Somehow getting Ridley in the future would be great, but until then... don't hinge your hopes on an icon.
Sakurai probably just wanted to make him as close to a playable character as he thought he could be.
We can't deny that Sakurai is listening to the fans (or maybe just fell for the social pressure) and that's why he's bringing back Mewtwo despite even if he needs to rebuild it from scratch or importing and updating data from early 2001.