It's a valid assessment.
You make out that you're so much better and that what you do is so much harder.
Thing is though, you referring to TMA as "dance class" really only has one sensible interpretation - that you don't have the strength of mind or presence of self to take personal responsibility for your own training.
If it's too easy, put more effort in, make it more difficult for yourself.
I can choose to coast a class and barely break a sweat, or I can choose to work at it and leave absolutely knackered. It's the difference between "that'll do" and "that's not good enough".
Being so weak willed that you can't push yourself to choose the latter and need someone else to push you into it isn't the fault of the art, or the class, or the teacher - it's on you.