All it takes is 1 candidate with an axe to grind and I guarantee you'll never give feedback again.
When you comply in advance, you not only let "them" win, there isn't even a them here, just an idea of a possible threat. Fuck that. Anyone can sue for anything, you can't "do stuff so you won't get sued". Frankly, this is cowards take that lets an nebulous idea pollute your world.
We don't have to Joan of Arc or Don Quixote, we can just do the little stuff that changes culture in the direction we'd like to see it changed.
Humans are incredibly valuable across many many dimensions, not letting them know how they can improve is a massive waste and harmful to both parties.