In the video taken from right front, the smoke does not start coming from the cockpit windows and RF door until approx 1:40 after the aircraft stops. The people who escape during the 1st 60 secs generally get up from the bottom of the slide and walk/run away. In the remaining 40 secs the very few that use the slide stay collapsed at the bottom, or walk away and collapse. If the smoke from the door indicates the interior finally caught fire, it was all over well before then due heat/smoke/fumes.