Onto another point: if the wedding is on, will Gryphon's existing family be represented?

I do have this image of him turning up, the organist starts playing... Gryphon suddenly realises it's Kaitlyn on the organ, but this is not the time or place to say hi because the bride is already walking down the aisle and where did the best man go...? And then Utena turns up next to him holding the box with the ring, greeting him with a quiet "Okay, dad, you got this..."

In short, powers mysterious but benevolent are going to see that this turns out well.