To me it seems like the state of mind of the top brass like Iger and Chapek and others. We don't exactly get original park content anymore. None of the expansions are new things, they promote the film division somewhere. And we also have closures and reskins of previously unique things made to promote. Look at Star Tours, it went from a Star Wars related ride to a Star Wars film ad, Maelstrom lost for Frozen, Universe of Energy lost for Guardians, Great Movie Ride lost for Mickey Mouse, Backlot and Lights Motors Action lost for Star Wars and Toy Story. Just seems like there's a trend to me. Not saying that this thought process isn't still giving us some impressive stuff, just that it is taking the parks in a different direction that a park centric view would.
And the Wedding show isn't exactly a high expense for them. The weddings are already happening they just add a camera crew.