I would say ask the many Horde players who have been very vocal about this issue and they will be happy to explain their reasoning.
I don’t necessarily agree with them either. I’ve played WoW around the time BGs were first introduced the game and I’ve dealt with BG queues in excess of 30 minutes at various times. I would solve it by farming out in the world while waiting on queue, or else queuing multiple BGs at the same time which leads to maintaining a good position in each queue at all times.
Some players have an expectation that the game should be more like a lobby game, where you sit in a capital city and queue for whatever activity and are instantly teleported there. Why have a world at all then?
The thesis is not that Alliance players chose Alliance for faster queues. Rather they chose the faction that they like. A lot of players surely don’t give it much further thought, but some do.
Personally, the vast majority of my network of PvP friends all chose Horde. For that specific sub-population of competitive PvP players, the choice was relatively less about aesthetics and relatively more about racials as well as the self-fulfilling prophecy that Horde is where the competitive PvP community is.
I went Alliance anyway, because the one friend I play with most often strongly prefers Alliance. I’ve played both over the years, and I like the Alliance zones and appearances a bit better, but don’t have preferences that are as strong. I’d like to have WotF as we are queuing Rogue/Druid in 2s and it’s nowhere near as good a comp without it. But my friend really insists on being a Nelf, so here we are.
And we played in classic on Alliance, having fun experiencing classic but also talking all along about how TBC is likely coming and what is our plan to be prepared. During late classic phases we played a bit of TBC PvP on a pserver in order to re-learn the classes and meta (it’s been a long time after all) and we played on both factions. And my friend isn’t stupid, he knows that our composition is objectively stronger on Horde side, but he prefers Alliance anyway.
Our guild discussed the possibility of switching Horde for TBC, and decided against it because it would suck for our Scarab Lords and Grand Marshals and Alliance gets Seal of Blood now. But if we had gone Horde as a guild, still my friend would like to remain Alliance and find a new guild.
Mind you, this whole time I have been planning since well before TBC classic launch to level Horde as well at some point, on whatever server most of my PvP friends from past retail expansions landed on. I planned this in order to have an alt that I can queue with other friends.
Fast forward to today and the perception of better Horde PvP racials, bigger PvP community, and boosts making it easy to switch, have created a situation where Horde do outnumber Alliance, for the rated Arena community in particular. Even our other PvP friends in our current Alliance guild are talking again about at least boosting Horde alts if not switching more permanently, now that the queue times for Horde are potentially removed and there truly is no remaining downside to the faction. If more players do switch, we definitely don’t want to be the only ones left. Even my one friend that really, really loves his Nelf Druid, is saying “well maybe I could get a 2nd account in order to have a Tauren too”.
So would I say that any of us chose Alliance specifically because of faster queues? No, not at all. But have we considered the removal of that downside when considering whether we might want to move to Horde for all of the upsides it offers? Absolutely.