i think mcu Quentin is totally the kind of guy who would show up at his own funeral to see who attended it. He wants to see the tears. The drama because they lost him. The hysterical “WHY HIM?” screams and the heartbroken wishes that someone else should take over his place to bring him back. A sick little egoboost as confirmation that his plan worked. He maybe even thought about it to make his comeback at his own funeral, to use the emotinal vulnerability of the mourning people to get some extra cheers.
But nobody was there.