Fantasmic! Dessert Party Questions

Any consensus on whether the F! Dessert Party reserved seating section is that much better than what I could get if I had a FPP and arrived 30 min early? We don’t really care about the desserts themselves. Also, how late can we wander in with the dessert party and still get a decent seat? Say CL5 day, one show, EMH morning hours at HS.

I think the special seating is at the front, in the splash zone.

I know that about 15 minutes before, they open up the dining package seating area to everyone, I assume this might be the same.