I believe as you do. The number of lousy instructors far outweighs the number of good instructors. You are very lucky if you have a good spinning instructor in your area. Again, there are lousy ones around where I am. I am an outdoor cyclist and I spin in the winter months. I became certified because I just couldn't take it any more. I keep my education current, I read read read and I try to be bring the best indoor cycling class that I can, mimicking only the realistic moves on the bike (flat road and climb, in and out of the saddle). Nothing fancy, but challenging and fun (and SAFE). That's all it was ever supposed to be. Others took it to the extreme and ruined it, in many cases.