Nah, it was discovered not too long ago that on a boss that does pure physical damage that a rogue with enough dodge and group buffs can tank it quite easily.
Ive seen videos of rogues tanking Gruul. Archimond and even tank Illidan.
Heck it was a rogue trying this out that found out that after about 50 'grows' Gruul resets to one and starts over back at one.
Its nice to know Seccord is capable of this too, just a shame that about 30 other rogues have already done it, since the first rogue did it theres just been a flood of copycats.
It is impressive to see a rogue tank illidan, but once you have seen it once its not very impressive after. though either way grats to him i suppose, nice to see rogues putting warriors, paladins and druids out of a job
Next thing ya know we will have mages solo-tanking sunwell bosses while the warriors read "healing for dummies" in the corner