There's sculling and there's sculling. An occasional sweep of the hand certainly shouldn't be grounds for failure but if they can't maintain trim or swim in a straight line without their hands then there is a problem because these are skills that they are supposed to be able to transfer to their students.
As for your poll, I didn't vote. I hate "failing" students. To me failing should only ever be an option if the student chooses to give up after remedial instruction.
The only person who "fails" when they fail a student is the instructor. It's a "failure" to teach.
If you want to complete the poll then you should add a fourth option: "Teach them."
R..
AMEN!:cool2: