Got better video of the punch bug.

So it seems like the way this bug works is when you punch a punchable object from the wrong side, it tries to move you to the interact point. I attempted to replicate the launching bug in the video, but wasn't able to get it.

I found a glitch early on in my first playthrough. If you punch one of the punchable boxes while you're moving, but not the side where the box will move, you get launched in the direction that you're moving. I had the same interaction with some other punchable objects, like the wrong side of a punchable wall. This'll probably have some useful applications.