I think if they were looking down the barrel: when Nintendo gets an expansion (and I don't think it's an if, considering IOA is seemingly fast-tracking Zelda), capacity will be the forefront that defines what Hollywood gets.
Regret is the wrong word I would use. But they handicapped themselves with the removal of the shows, and that the Lower Lot is heavily congested right now (and that the only way it's going to be fixed, is to expand the footprint).
I mentioned this on Twitter, and I don't care if it gets me cancelled. Close down Mummy at the end of the year, demolish it, and make an open air plaza that has space for a live show. The park desperately needs to fix the Lower Lot midway, as it cannot sustain the crowd volume like it does now and during HHN.