That’s not enough, still. It should directly affect the rank too. Get low on behavior score, not only everything they already do, you will also start going down. Because rank is everything to those toxic people, it is the only thing that drives their toxicity.
The problem with mobas, and most modern multiplayer games, is the visible rank system. Back in the day, with only community hosted servers, people were playing for fun. Then multiplayer shifted to publisher hosted servers where you started playing with one click on the menu. To keep the matches interesting, you needed a system to matchmake fair lobbies, so here comes the ranking. But they made a mistake by making the rank public, because now the players are no longer playing for fun, they are playing to raise their rank - and losing even lowers their rank.
The protagonist claimed to have been wrongly imprisoned. That’s one of the greatest hooks of the film imo, we the audience want to believe he was innocent, but if looking at the case objectively, he could have been guilty as well. I would even say it was probable. Andy even admits he went to confront his wife, armed and intoxicated, but claims he fell asleep on the driveway, while some other guy went into the house and did the killings. With the same type of bullets his gun used, which also mysteriously disappeared from his possession.