The BG change is stupid beyond words, it is going to destroy the competitive nature of BG's, it is just going to make people synchronise queuing like they do for AV.
If people play in a premade the matchmaker should try to put you against a premade. It promotes competitive pvp which is a very good thing for pvp.
The game is a massive grind, and having a possible challenge makes things more fun.
I was doing WSG with my guild last night, hit a premade, they were up 2-0 and we reverse swept them. Most fun I have had in a long ass time.
Removing the group queue would kill people's drive to pvp by far.