Just want to give my $0.02 about technique...
I think the teachers who really stress "good" technique to their students are doing them a favor. "Good" technique is generally a very safe starting point. That being said, if you have a sound in your head and you want it badly enough, you will find it even with the worst technique in the world. But if your starting point is proper traditional technique, then I'd say you're off to a good start. Of course, having a sound in your head that you want to achieve is way more important than having great technique.
Also, to watch an accomplished player do their thing and from that conclude that proper technique is unnecessary, to me seems a bit like a beginning driver watching a NASCAR race, and coming away convinced that turning signals are a waste of time...