so did blizzard remove the blacklisting

ok so did blizzard remove the blacklisting of battlegrounds ? Everyone knows the horde blacklist Ioc and Av to tunnel their bots to those 2 battlegrounds while the alliance don't so the world of Warcraft po alliance bots are spread out into all the randoms not just the 40 mans resulting in a 20% win ratio or less for the alliance. If blizzard didn't get around to doing anything about that then all blizzard really did is fix it for the horde.