Rsham are perfectly fine as they are.
A good and smart nerf to frost dk and WW (Not a DH type of nerf of course, something like, nerfing Serenity for WW) could help them to slowly be "better" in this meta.
Hydra complained, complains and will complain all the time.
If he gets OS because of a maybe-right OP comp, that's because the game is bad.
If they OS a guy, it's because they are good.
I was being sarcastic =)