“I hope it was terrorism. Otherwise, we’d have Airbuses dropping out of the sky for no known technical reason. It’s no great revelation there are terrorists.”
If it was a mechanical problem, that problem can be fixed on other Airbus products.
That option is easy and cheap.
It is not “easy and cheap” when you have to ground entire fleets waiting for problem discovery/solution. Ask Boeing how much fun they had with the 787.
“If it was a mechanical problem, that problem can be fixed on other Airbus products.”
Provided enough wreckage remains to determine without a doubt what caused it.