I can understand the timing argument. That makes sense, and I certainly wouldn't want to be the Ops TM corralling the Mardi Gras parade crowds as they pack into the Lagoon viewing area each night.
(...
But, Disney can apparently handle it with Fantasmic and has been doing that for close to 40 years, and even USF has got the equally uncomfortable Nightmare Fuel squeeze down to a science and they do that show like 18x a week or something, so



.)
I also entirely agree with
@Mad Dog that a park like USF is only better with CineSational operational. There is an entire park day to engage with Mardi Gras activities (which themselves really aren't
that demanding imo) before capping off the night with the parade and CineSational, which still have a solid 30 to 60 minutes of buffer time between each other.