Don't prejudge. Decision to evacuate was probably made after the plane had landed (and stopped) when the fire crews saw smoke. So he had no reason to stop on the runway.
If there was a fire in the forward EE bay stopping crosswind on the taxiway was probably a good option anyway.
The video shows a very orderly evacuation with no evidence of 'sauve qui peut' - would be surprising if the pilots were not at the back of the queue for the door.