[2022] Did they remove loss mitigation for teams with AFK, trolls, and inters?

Both Remake and ranked AFK compensation are on. However AFK detection is pretty conservative to minimize false positives. At high skill levels, unfortunately, players are going to be better at "soft-inting" to evade detection. If you want to DM me your account and info about the games (date, time, timezone, region, player or champion who was AFK) we can take use it as a source for future improvement. It is a hard problem because at high skill levels there's a lot of jockeying for position without a lot of combat happening which can look like non-participation (think Leona positioning and waiting for the right engage moment).

We'd really have to look at the games to understand why! There's also a bug that happened recently with report categories not getting recorded properly so that may have affected this.

Without revealing too many details of how our detection works, yes players like that will get detected. However they may not be gone long enough to trigger a positive result. We do try to be forgiving if someone is legitimately having trouble with their connection (it could be a bug in the game that is causing a crash on their phone!).