Matchmaking broke for good this season?

I was having pretty good fun last season in both QM (65:36 on Greymane, slightly lower on Sonya and Rehgar) and ranked (35:15 on Tychus, slightly lower on Raynor and Sonya). The matches became a lot worse when latest season started, and just winning half the matches with any hero was a tall order. I decided to take a break and when I returned this weekend my team was losing 7-8 out of 10 matches, usually because somebody was either AFK or obviously feeding - this was happening both in QM and ranked. I played some 30 matches now and the trend stays the same, with some 10-minute matches against premades thrown in for extra fun.

Is there any chance to retune matchmaking to prioritize balanced teams over quick searches? I don’t care if I have to wait 5 minutes for a match to start - I can grab a snack or something. It would be way better than to get a match in 40 seconds just to again get demolished. As it is I will probably have to just say farewell to the game.