And that's why the flight attendants aren't being replaced by untrained randos; they're being replaced by pilots, who have even more training than flight attend

And that's why the flight attendants aren't being replaced by untrained randos; they're being replaced by pilots, who have even more training than flight attendants do. And yes, that training includes how to evacuate passengers and other relevant procedures, because this is already something that pilots can and do get involved in in emergency situations. Once the plane is down they have no further piloting needing doing and need to help with the evacuation. Witness Sully Sullenberger on the Hudson -- he was the last person out of the airplane, having already assisted all the passengers in evacuating and then gone back to perform a thorough sweep to ensure that no one else remained.