Thing is it takes too long, might take years or entire expansions and is entirely rng based and people who pay for the game now should be able play it as much as people who harvested contacts by now or have friends to play with etc
Like you said most people play like this 
Unfortunately my friends who played wow quit few months of SL launch cos none like this expansion so now Im being punished of bad expansion with a bad designs for the pvp systems
There has to be soloq type solutions to gear up for arena and even rbg perhaps
I used to play alot premade bgs but this aint vanilla anymore its 2022 and how people play games have changed quite alot
No other online game requires you to have set group of people to go play with before you fire up the game except some tactical shooters which hardly no one plays or knows of 
This is world of warcraft the most known mmorpg of time and somehow it is still stuck in year 2005-2008 something era with its systems
Its good they are finally going to a more modern direction with DF designs but its also very late and by that I think it might be too late and too little here from blizz end
Just looking at s4 now and the fact that we grind pvp set yet another time and they do hard reset on mmr for short season too where people are going to hop on wrath and then DF prepatch kicks in…
I think they are just doing alot of bad decisions and generally clueless and this is assuming there even is anyone legit trying anymore or if its just analysis and plays left to please shareholders in forms of keeping subs rolling as long as possible by making as much treadmills in dead and content empty dead seasons as possible