Such a blatant sophism, think long and hard as to what the word actually means. It means it was made previous to the BG itself. Pre Made. Get it?
The purpose of a random matchmaking system is to randomly match people up. To not enable a Join as Raid function into it, is intentional.
Just because you can’t literally queue as a raid, doesn’t mean you can’t join as a premade. Because the raid is made beforehand, i.e. it was PRE MADE prior to the BG.
So it’s without a doubt a premade when you organize a team before queuing, for the purpose of doing AV together. Which only alliance and Russian pools can do.