if the glutes weren't already working, you would be a sloppy mess on the ground these band exercises are better utilised for the fragile population and not for tissue hypertrophy, strength, or power.
Also.......MUSCLES DO NOT TURN OFF!! Some muscles are just in a better position to contract compared to others to complete a task due to skeletal orientation. Never forget your brain will always keep you safe and use the best muscles for the job you are asking of it. Position dictates function.