Did you notice how the guy is talking about disconnecting auto thrust : click click - Airbus has made it different, it used to be really simple but now you need to think to do it the correct way.
I did indeed notice that. However back then when I flew the A320 I never felt this was much of a problem; sure, you need to adjust the thrust levers with the 'donuts' prior to disengaging autothrust - otherwise you'd be in for a nice increase to climb thrust - but I never thought of it as another step I would to really have 'think' about. I just did it.
On the other hand I have to admit that I can imagine pilots not having flown Airbus before having some difficulties adjusting to that.
DBate