A lot of people are also bringing up BLM for comparison - just remember, they can fire IV into instant flare and they can also instant sleep. Sleep is probably one of the strongest CCs in the game, no cooldown, decent duration and you can peel for ages with it. RDM brings virtually no utility. It's probably on par with MCH right now with being one of the worst range slots for 4s. Also having to be in and out of melee in PvP is incredibly irritating, rather be a SAM, have better overall damage, and an escape than be an RDM. Also because of the tick system even trying to LoS sleep at times can just be entirely irrelevant since you'll go behind a wall and it still hits you.