Pretty much any nerf warriors got after the dire maul patch was because of something that was genuinely overpowered (like intimidating shout's target limit, or the rage generation, even though they ****ed that one up at first). It's not like they completely raped your class down like they did to shamans since release.
Anyway, dps warriors still contribute a lot to a raid's dps. Especially for other warriors, enhance shamans (all 1 of them brought on a raid), rogues and hunters (unless the arms talent only affects melee damage). Healing is pretty much a dumb argument because they're going to be in the same spot as the rogues (unless they're retarded) and will actually require less healing since they have more armor.
It's just bullshit that warriors are the only viable raid tank. There's not much in the way of 25 man stuff that a non-warrior can tank, because druids/pallies don't have all the tools a warrior has, and that's by far the worst thing about the class balance if you ask me.
It's not like warriors are the undisputed kings of WoW like they were pre-2.0, and they have a talent setup that's almost as bad as paladins in how it so sharply divides your abilities (it's just that 2 trees are dps and one is tanking vs 1 heal, 1 tank, 1 dps). I just don't think it's fair that there's only one real raid tank and it's the warrior. I've actually tanked a lot of stuff in kara on my pally, but I doubt I'd ever, ever be able to tank even gruul's lair, much less SSC or TK. Even if I had the undisputed best tanking gear available.
I don't think anybody knows how shitty the pally is unless they play one at 70. If you don't like being a healbot, it's a tough road for raiding (or instancing in general) and raids are incredibly one-sided in favor of healer gear anyway. I'd go more in-depth about how the pally tanking system sucks (it's more than capable of holding threat, but it's harder to heal a pally tank than any other, and the taunt's pretty meh) but that's really for another post.
I probably shouldn't have said Kalgan is a retarded warrior-lover who ignores classes with far more serious problems to focus on his favorite class (although at this point, that could also be warlocks, and it's true nonetheless), but I'm still pretty bitter about the pre-2.0 world, since post-2.0 isn't really any better for my pally. And I blame warriors, because I came from a guild with the most asshattish warriors I have ever seen (95% of them were complete and total pricks and crybabies, and the ones that weren't quit because they didn't like the shitty attitude of the others) so it's like vicariously telling them to **** off for all the times I didn't.
edit: I should add that if a pally/druid were capable of MTing raids as well as warriors can, warriors would still be awesome to take along as a dps spec because they deal extremely respectable dps and are far more durable than a rogue or enhance shaman. They don't provide necessarily awesome buffs for a raid like shamans/feral druids, but they're also more than likely going to outdps them by a large margin.
(Maulgar, Magtheridon, Gruul and so on, the slow, hard hitting bosses that can burst for 20k)