They're probably doing the stunts for a hopefully viral 30-second tiktok. Colour me unimpressed.If they aren't rewarding them with points, even if an element isn't illegal it isn't being encouraged. Beyond that I don't see what they can do.
I love Adam, but honestly his backflips aren't aesthetically pleasing and a little jarring. I don't think he gains any marks from them (and last season got 2 points deduction executing them), so at that point it's just his choice.
They should avoid making them an element with value or encouraging them, but if they want to do them they will do them (even if they don't in competition and just in practice/shows).