I responded to your quote, which didn't restrict itself to airline pilots. There are also people flying their own planes for fun. And military pilots. Both of which may pull risky stunts in real planes.
I confined my upthread answer to airline pilots because that’s what’s familiar and relevant to most readers and seems most directly relevant to risk-reduction for passengers/non-participants. (We don’t do risky training exercises with pax on board either.)
Your arguments are about pilots training in controlled conditions that don't put others at unnecessary, non-consensual risk.