Mumbles on the runway in the middle of the night? That’s some weird krap right thar. Way past Mumble’s bed time. I expect somebody thot they could hide him in the dark. But as you note, the curled thums ain’t right. Neither is the super white fingernails on the hands that are way darker than the face. I was listening to the late news, when the plane was landing, and the voice wasn’t right either.
The motorcade was weird also. There was a “Beast” but that one didn’t look like a Cadillac, which is what the real Beast is.
Also notice the camera angle from above… they hope no one will notice the new Joe has grown 6 inches taller if they angle the camera down.