I am kind of mixed in my feelings in regards to getting your conditioning from classes.
There is pros and cons for both.
For the beginner, Classes more oriented towards learning are far more valuable, IF there is conditioning done on the side.
Certainly certain types of conditioning should not be part of class, like IP, IV, strength conditioning and so forth, BUT "sport specific" conditioning should be part of class.
You will never get as good a workout when you are learning in class then when class is devoted to conditioning, that is a given.
I recall when I was learning to box all those many years ago, the coach would stop me during my bag work or mitt work to correct this and that, to show this and that, to work on this and that, in doing so, giving me an "unearned" rest.
Of course the instructional part of Boxing and MT tends to be "more" personal than the typical TMA class.
Perhaps a best of both worlds with a couple of "learning oriented" classes and a couple of condintioning orietned classes.
Psalms 144:1
Praise be my Lord my Rock,
He trains my hands for war, my fingers for battle !