I would be leery of teleporting to random places, were I Razi, but he can just jump out again on no notice if necessary, I guess.

Indeed he can. It takes something pretty heavy-duty to catch Razi in a situation that he can't hop out of. (This is why Addy could only catch him once - she had to do it with Alec's power when he wasn't expecting it. Alec's power is way too slow to catch Razi if he's aware of the danger.)