I practice Taekwondo regularly with the club at my university. There are three main instructors, one 3rd dan and two 1st dan (my belt level).
The club has a lot of black belts of varying degrees who want to keep in practice, but also a lot of beginners trying out martial arts for the first time. This makes it very difficult to run a class suitable for all students. The head instructor generally does a good job tailoring the class to the level of the students present or splitting it into two groups, but often the other two instructors essentially run a black belt level class even if it is the first day for half the students.
Several people who started practicing with the club have quit because the classes made them uncomfortable, and I worry that it has turned some of them off martial arts entirely. I also think that even for the ones that stick it out the class style is substantially lowering their ability to gain mastery and leads them to get hurt more often than they otherwise would because they aren't ready for various techniques and drills.
It's difficult for me to figure out an appropriate way to bring this to the instructors' attention--I don't want to be disrespectful or undermine their authority, but attempts to subtly direct their attention to this after class haven't been particularly successful. Students who are uncomfortable usually just quit, and the others are excited to get to try advanced moves/sparring right away, so I don't have the impression the newer instructors are getting any feedback on this.
Is there a proper way to handle it? Or should I just let it alone?