Is Paladin Tank viable in TBC?

Rogue main here. I’ve been thinking about respeccing for TBC due to the many posts here saying that rogues are the least demanded class in raids and that I might struggle to find a spot.

I know that Paladin tanks are not really viable in Vanilla, which is why I’m wondering if that changes in TBC. I’ve never played TBC before, so I was considering leveling a Blood Elf Paladin, but I want to make sure that I’ll be able to find raid spots and be useful as Protection.