I think if we are totally honest with ourselves its not stall recovery techniques that are getting people. At the GA level people are stalling, or even worse stalling and spinning, at levels that are far too low to recover. I guarantee if you stall on final at 50ft you're hitting the ground before you recover. Even at best in training most people take about 100ft to recover, and thats when you know you're going to stall and have the recovery primed and ready. As for the base to final turn stall/spin, well the only way to be safe from that one is by not entering it. Once its happened your gone.
As for airlines, I think the concerning thing is these pilots aren't recognising that they have stalled, for example the Air France crash and the Colgan Air crash. Pilots are flying aircraft that were certainly recoverable into the ground because they didn't realise they were stalled.