We have to admit ppl just like more horde than alliance ,maybe character models,lore,etc the point if always be more ppl rolling horde than alliance, but in wotlk server u can see a more equale balance of factions because the broken and op human racial for PvP, and a lot of casual ppl like and play wow for PvP and now u have a expansion without the human op racial and horde better racials, i think giving a humans just some little good racial like orcs, (ap,sp increase) maybe can equale the races and fix the problem, what do u think ? Sorry for básic english.
I rolled ally and have not experienced any of these "consequences" you say, really only advantages. More world pvp, instant bg pops, easier to make gold. Turns out my class doesnt get destroyed by Undead Rogues (which is 50% of horde)