I don't run any bg's as a boxer, so all bg's I do is solo; and honestly my experience is totally different. Not gonna say that every bg has perfect communication, far from it. But at least every other BG I'm in a team with a certain level of basic coordination. I admit that I can't speak for AV/IoC in mop since I have them blacklisted. With basic coordination I mean that after the first nodes are capped small groups are naturally formed who guard nodes and call out inc on maps like AB/Gilneas, and on WsG/Twin Peaks the attacking team waits for rezzers and communicates where to gather up. Those are in my opinion the basic things that needs to be organized and I see that in most bgs. That is my experience at least, and I have no reason to question yours. It might have to do with my playing times, or my faction. And I guess if you run AV and IoC getting organisation going is nearly impossible. It's one of the reasons I blacklisted them, but the main reason was that I would end up vs full premades every other AV, premades that avoided every objective and were just farming HKs.
My point is not that there is something wrong with premades, my point is that there is a limit to how many people can queue up at the same time (5) for 2 years and people have been circumventing that with an addon to get a fully premade. If blizzard would allow fully premades to queue up (without the need of a dodgy addon) I'd be fine with that, and take part in premades as well. The best random bgs are those were you have a few 2-3 groups in your team vs some in their team. But if you follow the rules by queuing up with max 5 people, and then get overrun by players who gamed the mechanics, then that leaves a bitter taste.
On a sidenote, if blizzard is fine with a 50% premade team in twin peaks and a 33% premade in AB, it would make sense to increase the amount of players that can queue up for AV and IoC to at least 10.
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