Phrases and poses are disrespectful.

The game should not encourage disrespectful behavior, and poses and end-of-game phrases are just that. I shifted through all of the phrases and there was literally 2 that weren't straight up mocking your opponent. At the very least make it possible to disable showing them.

I'm sure different people will see this differently, but precisely because of that, you should be on the safe side. Jumping around because you won a quick game is against all types of sportsmanship and should not be promoted.

If you really, really want an animation to cover for load times (which is fine), the most you should do is show both avatars shaking hands, but ideally just give us an option to disable it entirely and have a quick transition screen.