This has happened to our gym twice (that I know of) where we were awarded a 1st place finish after the team that was announced as the winners were later discovered to have overage athletes competing. I would honestly imagine that the team members and their parents may have never even found out...
I saw lots of LGS yesterday, but it seemed to be mostly from very small gyms who were just putting a team out there with what their gym had available. One team specifically had two very small flyers (looked to be about 5 or 6 years old!) One stayed very tight in the air, the other just looked...