While I agree personally, I do get the need given the focus on Disney as a "brand" and the audience they want. I am coming around to the good use of IP. (my how far I've fallen...) I personally think Luminous is a great example of potential. Not that it's perfect. But, rather the idea of what Luminous with Harmonious' (heck half Harmonious') budget could be. The abandonment of any care about cohesive theme that is more than surface is what bothers me.
As I've long said on here, this is coming down to bad storytelling. MK has a bigger problem with fit. Epcot (aside from sightlines) is much more about the actual story of these attractions. Nemo, Guardians, FEA, Remy, Poppins, HARM, BATB sing along, even Grand Fiesta... they all have nothing to do with the THEME of Epcot. Ironically, people talk about how they made Guardians fit by focusing on showcasing a (fictional) people's technology like World Showcase. But, with all of the World Showcase additions I mentioned above, THEY ARE ACTIVELY DISMANTLING THAT STORY! They are eroding the World Showcase pavilions as presentations of the country and then trying to actively reference that story in Guardians.
It feels like these decisions are being made by people who were given a guidemap of Epcot. They don't understand the park, let alone have any fandom or appreciation. And, it's leaving the park (well, let's be honest, parks and hotels...) as a garbled mess THEME wise. And, every one of these rides could have easily fit into EPCOT's story (inspiration from the real world) with a better story.