Because they are an RP based race, and I don't think they have any problem with it. Sure, the occasional PvP is fun, but (I may be speaking wrong for other Elves here) we don't care to have our RP interrupted by people who JUST want to PvP. I enjoy good Orc raids in which they're actually there for the reasons you listed, not just pulling up to initiate PvP with shitty RP and instigating. Could always test others, however.
Sorta have mixed feelings on the cooldowns, however, as I dislike being raided but at one point liked being the raider, so I feel yall there.