Av has always been broken. I spent most of retail vanilla - BFA getting steamrolled by alliance. Some patches horde would win for a while, but most of the time it was a loss.
It was definitely great for my alliance alts. I would afk/watch flag in frostwolf towers and farm honor like mad. Av was always my favorite on alliance.
Yea in Classic alliance be struggling, but hey that’s AV for you.
Get use to it because that maps been broken for well over a decade.