Also there appears to be some more info on spectators here:
guide.rundisney.events
Oh, I assumed you weren't able to find whether specators were allowed or not in early AM. I don't think there is any chance they have time to set up Chear Squad for Wine and Dine, and honestly it's a tough thing to work out. They'd have to be seating parties close together for unknown amounts of time, even though it's outside. You might have one group wanting physical space or masks and another having no interest. Not the end of the world for fireworks time outside, but if it's a paid enhancement then you expect there to be a positive experience.
More or less I assume that it's either race retreat and chear squard, or neither. And it's too late to start selling race retreat packages