It's literally better than nothing at all though, and that is the point, you're splitting hairs here just to take a dump on the thing. There is no danger of this thing taking over or replacing a real bass in any situation you in which you could play a real one. If you already know the scales etc., you don't need to hear them to simply run through workouts and work on speed/hand strength or simply stay loose. By your logic it is a dumb idea to practice self defense on a heavy bag beacuse it won't hit back or cry out in pain. It feels like you guys are going out of your way to hate on this thing and in my opinion it reeks of insecurity.