Yes, that is correct. We'll be there at the same time, though arriving on Saturday. It looks like they are converting to the post-Labor Day schedule of weekends only for Fantasmic! a week early.
There's always hope that the entertainment offerings will be updated as the date gets closer. Keep checking the calendar. You never know...it could be added if projected attendance warrants it. The flipside of that means, they would be expecting higher crowds to make that change.