Yeah that's one of the arts of rehab, how many exercises to give a patient that they will complete them appropriately.
Exactly, resistance bands aren't all about strength. They are more about muscle control. They are intense strengthening. Your glutes are the most important muscles in the body as they connect your spine to the lower extremity train. They control the position of the pelvis in closed chain activities. It about control not pure strength. And control needs many more reps for learning the so called muscle memory.