is the same in WT, same here, if WT still cant balance MM to work, Enlisted wont either.
This wont happen, because, in that mix, is also the people who played to high tier, without, the use of pay to have end game stuff.
Issue is the ranking being displayed, if only the owner could see stats/ranking, be no issues?
I have no issue facing the end game gear, or end game peoples,
but, i have issue, when the high players that do get put on your team, just leave (without penalty to there precious ranking), game, when they see more higher people on other side.
Also the same also, don’t wish to play against others of there own ranking, as ,its to hard, they don’t play games to sweat, they pay to play games to have fun,
fun for them is not facing each other, no, its seeing who can finish a game in under 9 mins with most kills, in a stacked team, because they know all the other high people have left, on other side.
( i play for the challenge ) but each to there own.
So it will never change, you will still have high people, bailing on games, because they decided its not fun, to play against other high ranking people, or on there team, are new, or bot players.
MM is not the problem as such, other than MM in first place, by putting all real people one side and bots new people other side
it more down to the people that leave that make it worse, because there at end game, and are bored shitless as no one to play with, as they wont play there own ranking equivalent.
Have rankings etc, just don’t display them? unless you trolling 
ohh and please(pretty please) put a option, not to join battles in progress, but think i can see why you wont?