Since merc mode made us cattle with blackrock rele players for "me stronk ally bis humans", the only solution became to isolate the bg s totally and go for gank festival and kill every single ally while they are still small.
Or warmane can simply fix this issue by implementing that old AT bg system which was placements on factions are total random for both sides, regardless of races. May reduce immersive gameplay but it cant be worse than the current situation.
That merge was totally bad idea. I don't know what they expect. Now if you just want to won BG, go Blackrock create Human Pala and Press "Que BG".
Even with premades it's totally impossible to win BG if there 2-3 brained healers, just cause they too way overgeared.