Late Night Matchmaking Sucks

one thing we learned about complaining the MM is : if they touch it , they make it worse ... thats a fact and happend numerous times.
The first version of the MM seemed to be okish as it was the original developers (which meanwhile are all gone from Respawn, should tell quite a lot) version without too much corporate interference. 
Maybe you get yourself an EA creator account , wouldnt make me wonder if those MM issues magically disappear.
As Samy Duc told in the infamous blogpost : MM also depends on some unspecified variables, besides your MMR they didnt want to share with us ...
And about the waiting time ... frequent flyers would gladly wait up to some minutes, but new player wont. thats why they need to deal you a match within around 30 seconds  ... which is one of the factors you get such unbalanced games.

I remeber the player counter at the lobby screen telling you 200-300+ players in queue in the oldest versions of the MM taking up to some minutes to prepare you a game, now the game starts when that counter hits 60 in the span of around 30 -60 seconds...
They take the next 60 players in queue and then they match whats left, no wonder you end up with 3 stacks as opponents and you get the lvl 35s as mates