Did a little looking on the Armory, and I think its accurate. ALTernate Arrangements has H. Spine & H. Madness down, but I can't find an Alliance guild that's done either after that but us. So, yay us?
Yeah, I didn't even realize Security had quit raiding... That said, when I was looking at the Arthas forums the other day, I did see Whiteleaf trying to recruit people so they could start raiding again.
Nicely done, though it is true that Arthas Alliance has been dying for quite a while. Hidden imploding, SEC dying, KS disappearing hasn't really done much good for the server :/