I'd just like to say this one thing about "dynamic queue"
unless you confirm how many people are premade/"boosted" you don't actually know anything. and most of the time you can't confirm these things.
the thing is, that every time something goes wrong, you can just blame dynamic queue. I'm sure that most of the things that the community blames on dynamic queue, were pre-existing issues that just now we can say "feeding teemate? must be boosted" "oppressive enemies? must be a 4-man" but the reality is.. these things randomly happen. bad games, well-coordinated randoms. it happens.