I didn't know there was video of that event!
IIRC, they were unconscious and overall a bit wrinkly after that flight, but indeed they all survived without major injuries.
IIRC² the escape system had to be activated from the control room, not from the capsule itself. And IIRC³ there was a problem with the wire sending this message already being burnt through, so they had to switch to a radio system. That's why it took so long to launch them clear from the pad. If the communication with wire had worked, they would have evacuated much sooner. it was clear this was not going to be a mission from the start of the fire
.