in a way i agree, if your child is an A+/A student, homework might simply be busy work where the time could be better spent on classes they aren't doing A work in... if they are an A student across the board, let them use the time as the parents/students see fit
If they are an A student, they can do the homework in 5 minutes.
The point of any piece of homework is that new concepts must be ‘input’ to the brain at least three times, or they don’t stay.
The point of all homework is the ‘discipline’ of sticking to doing a task and completing it.
This is more important, in the long run, than any of the individual assignments.