Isn’t everything skill-based matchmaking though? Like smurfs in your game are at the same skill level as you?
Unless smurfs are purposely throwing games and place low during their placement matches, and then just destroy everyone as they rank up and claim ‘unranked to GM.’ Maybe Blizzard just needs a better algorithm to catch this their first game out of placements, which wouldn’t seem like a hard thing to do.
Would anyone even notice any of this if they removed borders from the game?