I fail to see how this is creepy (outside of potential uncanny valley issues in edge cases). There is a toggle to disable it, and this is something that most average non-savvy users would either want by default, or wouldn't even notice happening (because the end result will look natural to most).
I don't buy the slippery slope argument here, yet. All they're doing is shifting eyes and nose to compensate for physical offset from the camera. Seems like Animoji would be more creepy, as it's capturing your entire face movement.