I haven’t seen that situation myself, but there are two other odd situations that come to mind.
One year a team packed up and was trying to leave before alliance selection. One of my inspectors caught then at the door and grabbed me to talk to them. They were convinced they weren’t going to be picked and just wanted to head home. I managed to convince them to stick around for another half hour when I found out they were ranked 12th. Ended up being the 7th seed captain.
A different year, had someone from pit admin track me down. A team had approached them to remove themselves from alliance selection. I went over to talk with them, and they had some legitimate robot issues with both their drive train and primary mechanism. I rallied them, got someone over to alliance selection, and got started of repairs. We had the drive train fixed before alliance selection was over, and their primary mechanism not long after. I even had time to grab lunch in the volunteer lounge before they cleaned it all up. Another case of a team that ended up being an alliance captain - their drive train and mechanism worked throughout their remaining matches, too!