Why do QP players care about matchmaking?

You won’t get a genuine answer from quick play warriors.
They can’t comprehend the idea of what they are wanting from a mode already exists in comp.
It is beyond them.
They want QP to also be like Comp in every way, but don’t have to look at their rank.
They want the players to be closely, evenly matched (which requires keeping track of players win/loss rate with some kind of ranking system and to then be matched against each other with closer skill matches, which would also require longer queue times.)

Everything that they want… already exists in Comp mode.
They just want to duplicate Comp mode and call it QP. Makes zero sense. You aren’t going to get a logical answer from someone that wants tighter match making in QP.