A pilot should be able to fly any aircraft without needing training. Yes the training is good to teach the differences but no competent pilot should be required to know how to recognize and recover from a stall. That was taught in the first 5 hours of instruction. It is so basic, lower the nose and regain airspeed. AF had two pilots who couldn't do that. I am sure the captain could have but by the time he entered the cockpit the PF had screwed it up so bad he was even confused.
We need to not let automated airplanes make pilots monitors. They both forgot how to fly watching the magenta line.