Note that when they talk about Fury Tanking and not getting defense capped and shit, that's generally not-pants-on-head-retarded raid groups. So, not 90% of general population 40 man raid groups. If your healers are busy typing out their RP shouts before each heal you should probably make sure you've got a solid focus on mitigation/crit-immunity and just let any DPS who can't sit on their hands a bit die. And the full-out Threatgen Fury tank that's been talked about a lot in the last year is basically Everquest 1 with healers spamming Big Dick Heals on your ass constantly until OOM, on the theory (and practice) of the higher threat cap meaning more DPS, meaning bosses die before the spamming healers actually OOM. Speed-run shit.
The Druid thing is weird, they have better baseline armor/avoidance, and if you grind the fuck out of gnomer every week, really good high-threat windows, but they don't have crush immunity that Warriors get from shieldblocks, and their threat falls to the shitter without the pummeler buffs.