From what I understand, the Pilots were the ones who induced the Alternate law and likely the out of control situation by STUPIDLY performing undocumented reset procedures while in the air. Had they not done that, they wouldn't have found themselves in that situation. Airbus a/c are flyable at the most degraded law, which is direct law. It won't be pretty, or easy, but it's very doable with a little bit of aviating. They didn't even get to that point. Without getting too technical, Alternate law is a simple degradation of some of the protections unique to Airbus. Without those, it's like flying any other FBW aircraft. Any sane pilot would NEVER EVER perform a computer reset procedure that isn't sanctioned for airborne operations. The fact that the Captain saw a mechanic perform a reset procedure on the ground, did not give HIM license to perform the same, while in the air.
All airplanes have problems. Please don't try to create unnecessary fear of Airbus products. AirAsia, like Air France were unnecessary accidents caused much in part by pilot error.