Hooters has indeed been sued before for its antics, but I'm not so sure that it has learned its lesson. Off-handedly, this strikes me as gender-based discrimination. Hooters would not require a waiter, with similar proportions, to lose weight or be fired. I think Hooters has some real problems here.
Hooters won that in the US Supreme Court.
No men waiters.
It’s a “sexually themed restaurant” and may thus legitimately discriminate based on sex and appearance.