ANY word can be offensive to someone or other. We can't walk around on eggshells around here worried all the time about offending someone with words, otherwise nobody would be able to post on here!
In yoga, it is everyone's own individual class, and they can take any kind of pose they want. A good yoga instructor will realize that. We are not in a competition or comparison with anyone as we're all in different bodies. This particular yoga instructor I am speaking about seems to think it is a life or death matter that we do the poses his way instead of the recreational class that it is. As far as him being concerned that we might hurt ourselves, he has never mentioned that when is correcting me or anybody else. But it is my class and if I get hurt, it happens, and it is my responsibility. That is part of of the liability waiver we sign when we enroll in the club. And as far as finding someone else to take from, I do that, but I have limited time to exercise like anyone else, and sometimes with my schedule I have no choice but to attend these classes. I do think about joining another gym, but this one is the most convenient location wise.