Urm, it doesnt matter which class tanks what. Even a rogue managed to tank Gruul, Mother Shahraz and Illidan himself.

As long as the tank manages to impress the raid, that's more than sufficient. And in this case, TS was pointing out that a warrior with semi decent gears managed to do a good job tanking Kara and for this, a big grats to him for not many people receive the awe of others in a game where egos predominate.