Battleground spawn-camping at start

Just recently ive noticed alliance is camping wg more and more often...So basically they gather up on the horde spawn and spam aoe's just before bg begins so the whole horde chart is killed instantly when they spawn in, removing all buffs and more importantly stretching the spawn time. As far as i understand it the players spamming aoe's dont even take part in the bg but just take advantage of the short time window before being portet out of the bg.
Either way i think spawn camping in bg should be straight bannable as its more of a bug-abuse than anything else. I dont mind if allies win fair and square but this "tactics" make bg no fun at all and very hard to farm for horde.
Most disturbing part is that youre basically locked by alliance, who will also camp the respawn in Icecrown making it impossible to get back to life wihtout debuffing your self for 10 mins...