What on earth is this rubbish?
image is: imgur /HJHoW0A.jpg
FOUR healers on the same team? Seriously???
Not only did the quality of games get 10 times worse since 1 healer, 1 tank teams are no longer enforced, It also assembles incredibly dumb matches like the one above.
I have to put up with games where one person dies up to 13+ times and also games vs FOUR healers…
they may b in the same team, tryng out something crazy 
also, the match making still works, just may b you did not understand it perfectly , not tht im saying wht u faced was right,
but the rules =
if tank here = at least one tank there
if healer here = at least one healer there
if support here = at least one support there
abt assassins, there no logic i believe
so as per the logic, there was at least one tank n one healer in each comp, so the mm would match it,
but still, it should be refined, n it was, but then the queue times rose sky high n ppl complained, so they reverted it,
Play ranked, its more fun, bcoz standard comps, n u can ban some heroes to make ur hero more impactful