Making low prio require wins to leave it is one of the most idiotic things you could have done, take a good look at this thread and see how many unbalanced matches are, if people know they cant win they just give up and sit in base, is not enough to have the toxicity this genre already has, now we are FORCED to win. this will only increase frustration to ridiculous levels, players are already being punished by being in low priority, are they supposed to just stay there forever now? is not enough to spend 20 minutes looking for a match, or being banned from queuing, no, they have to roll the dice and play 20-30 matches to maybe win.
I may remind you, a lot of people experience bad performance which make games unplayable or just straight up crash and get flagged afk.