Well, as you hav already deleted the game, its pointless to say , but I will say bcoz you came here to make a post , suggesting that you want someone to change your mind to have it reinstalled
there r many issues in matchmaking,
But the problem is, matchmaking is on numbers n stats, and stats dont show skill level.
An awesome healer cant heal much if his tank doesnt protect him, and the haler is dived on n ganked = result = awesome heal player with super low heals = matched with low class ppl.
The game is a team game. and team performance affects your performance and affects the game.
One GOLDEN RULE that i learned
= Play in a party of 5 ,
NEVER go solo , if u go solo, b mentally prepared to b matched in a sh!tty comp,
If you are matched into a nice comp, with decent players who play decent,
Thank God for it , and play, and win
but best = make frends, get a party of 5, or 4 , n play