Extraction Game Mode (Onslaught) - Possible Fix

Look, I'm sure plenty of people have encountered this problem before where as you're trying to finish Onslaught difficulty, and trolls and afkers mess up your game because they want to be petty and pout when they don't have their way. Riot, if it's possible, can you link the missions directly to the account and funnel it through the search function of the game mode where it will search for players that have your current missions, then revert back if none are found? I would really like to finish onslaught difficulty, but to no avail sadly.