That looks much more like a cut. There is a technique blended cuts that interpolates between two similar shots to disguise the cut. That seems to be a much more likely explanation than AI hands, because it only happens for that one moment. And not before and after. His posture also shifts significantly at the same time.

There are many techniques to create and manipulate images and videos. It's not always AI. Those don't look like AI hands.

On the second one, my phone allows me to scrub the timeline and you can see his whole right arm is spliced from two separate moments in time. The folds on the sleeve magically shift, so it’s clear he moved and this has been edited.

I don’t think the full clip is AI. But this is a lot of extra effort to edit a trivial scene for someone whose job it is to talk all day. Why go to all the length? Would anyone care if they just had a cut in there? Would that be so suspicious otherwise?