Just to add to what you have said, the comps Nigel goes to are Singapore and Malaysian comps. Which means that Singaporean and Malaysian delegates have approved these extras before in the past.
And I believe the same thing also happens for China delegates, because I saw an extra being granted...
Kyle Santucci flashbacks
For context: Kyle Santucci was also accused of cheating and asked to upload an unedited average with scrambling between solves (by two people in the comments with a lot of people defending Kyle). He later uploaded an unedited average and they pretty much apologised for...
Congrats to Đỗ Quang Hưng! This result improves his ranking from WR7 to WR4 for average. (Yeah, I know this result is a couple of weeks old)
https://live.worldcubeassociation.org/competitions/4020/rounds/55783