I wonder if Boeing will survive.

The under-the-breath takeaway from this, is that AA is training its pilots on Airbus. Actually, it's training its pilot trainers on Airbus.

American Airlines already has around 450 Airbus aircraft, its not news that they are training their Airbus trainers on a new route.

That's not a concern. At that level, you need to be "type-certified". It's not that they are training on Airbus aircraft, it's that "to operate Airbus (or Boeing or Embraer), you must train on Airbus (Boeing, or Embraer)".

In addition to type certification for a pilot, each airline will then layer their SOPs on top of that, the "this is how -we- fly this aircraft on these types of routes".