Haha, you were just in the controller setup, and then right after that you wish the controls were different and the dev should change the buttons... (Every controller has their own setup by default) That is exactly what that controller setup screen was for. Haha.
Game looks quiet great though. I didn't see the whole video, but as far as I saw it, it looks really, really great.
(Edit: haha, then you come back to the controller menu, can't figure out how it works... That is not MV default, though. That is a plugin for sure.)