Sailing can be hard on the body and joints and if you need electro mechanical assistance, go right ahead.
I agree, just not for the race track. How is it fair that someone gets to short-tack up the city front and be totally fresh for a spinnaker hoist at the weather mark while you can barely get the spin bag out of the companionway to hoist because your arms are already toast?

Here is a though experiment..... If you were into racing bicycles but you now can't keep up with the crowd and it hurts physically to race. Would anyone suggest that it's OK to have a powered hub wheel to help you compete?