it will still be a pain in the ass to gear from pvp if you have to worry about the battleground reward being a duplicate
what part of "you are GUARANTEED to get a piece of gear in EVERY bg" did you miss?
in the past it used to take much more than a couple bgs to even buy a bracer with honor, let alone chest/head/legs.
also pve has more or less the same RNG in gear. you can choose which dungeons you are doing, but you can't choose what will drop from the boss. only real place where you are guaranteed to get what you want is WQ, assuming one pops with the piece you want.