I'm not "astounded" in the least.

If the structure of the airplane remains intact, and fire does not envelop the fuselage, it takes no more than three minutes to safely evacuate this airplane via the chutes.

The fire was delayed for a bit until everybody left the aircraft. Then the photos were taken after evacuation to allow you to be "astounded".

You want to be seriously "astounded":

Look up the Air Transat flight 236, an A330 that ran out of fuel over the North Atlantic, 100 miles from the Azores. The pilot had one shot at a landing, and he made it.

Now that is astounding. I'll remember that story as long as I live.