Opt-out option for entering missions in progress

Please for the love of all that is holy, add a checkbox that lets us opt out of joining an on-going game.

For Gold pugs it wasn't too bad, because you can carry bad players on Gold. With Platinum it's a waste of time and effort to try to carry level 15 characters that created a match and started solo because they would have been kicked out of any other Platinum match immediately.

Agree/Disagree?