Getting a ban is a meh way to notify the user about the rules: it doesn’t leave a good impression, some damage has already been done, and it requires moderator time.
Earlier is better.
Clicking “Requires Editing” should give a pop up for the user to explain what people in the H&I queue should do, selected from a list of the most common options plus maybe a free form box that leaves a comment. This should make it clear that it’s being sent to one’s peers in the other queue and not the OP.
The message would then be shown in the H&I queue, because I feel that queue currently seems to require some mind reading. Two birds.
