I don’t know. It seems to be pretty rooted in the uncanny valley, maybe for some short, far away shots, but I can’t see extensive use of this kind of technology in its current state.
I would agree, though I have seen some other examples that were pretty incredible, nearly seamless. Especially when the original person looks fairly similar to the actor. This would also work well for hologram shots, action shots, basically anything that isn’t a close up.