Before the end of the season all I played is ARAM. It's still the same thing, I still almost only play aram. But, ever sense the start of the season it's either we get a good team and slaughter them, or we get slaughtered. I haven't played an close or even semi close game for a while. Did something change?
Aside from the recent patch changes to the mana regen global passive and self-healing v. healing-others, no -- nothing has changed in ARAM (or match-making specifically).
Yeah, last week had 5 65% win rate champions in the lineup so ARAM smurfs were literally jizzing in their pants and spamming the queue for all of their illegitimate wins. Welcome to Riot not giving a fuck about "those other maps".
I play only aram and I havent noticed anything like you describe
