^ Someone who clearly did not to heroic vaults when it was current.
As for the topic, rogues are fantastic at surviving. They can remove debuffs from themselves to save healers from having to do it, especially in situations where you might be out of range (like kiting thok), they can take virtually no AOE damage on demand with no cooldown and very little cost, almost none, and cheat death also ensures they can survive a hit that would kill anyone else and has only 90 second recharge on it. Also have a raid defense cooldown via smoke bomb.
They're the best at surviving nasty situations. Especially since all their cooldowns are extremely short or nonexistent.