Wow you all would've been great at Disneyland in Walt's era.
"OMG!!! New Orleans next to FRONTIERLAND?! THAT MAKES NO SENSE!!!"
"OMG!! I can see a mountain from Main Street USA! What a distracting catastrophe! I'm calling Walt!!"
"They're building WHAT?! A ROLLER COASTER?! THAT DOES NOT BELONG IN DISNEYLAND!!!! IT'LL ATTRACT TEENAGERS!!"
Actually, I'm not that way at all - but I'll play along since you are assuming a lot of what I think... The attention to cohesive story and transition within lands was a key focus. Disneyland's premise was always about discrete lands focusing on an overarching theme. They didn't necessarily connect to each other and didn't have to. They were meant for broad-based themes that entertained families (of that era) and harkened back to genres which everyone (again, at the time) related to. So, as a result, Disneyland and Magic Kingdom worked because the overarching story works. And, other than maybe with SW:GE, it's remained that way since Day 1. It's definitely evolved and flexed. But, other than maybe TL, the focus of Frontierland, New Orleans Square, Bear Country/Critter Country, MainStreet USA, etc. haven't changed. What they feature and how it's executed has. But, the theme has not largely.
Here, you have what was once a very realized theme going to an inconsistent theme. Much like happened in Tomorrowland and Hollywood Studios. Are the countries in World Showcase trying to be a representation of their real world versions? Is it how the real world has inspired Disney films? Is it the Disney version of each country? That's where my issue is. I appreciate that not everyone cares about that level of detail - but many do. And, I'd argue that level of detail and consistency is what drives Pandora and SW Galaxy's Edge. I would bet many would find it odd if they put a Wall-E attraction into Star Wars: Galaxy's Edge - unless they redid the theme for Star Wars: Galaxy's Edge into something that allowed for both SW and Wall-E to be in the same place.
My bigger point is many of the expansions and additions have been great. I've been an AP for years making multiple trips a year until recently. This is a new direction which could have been avoided with better storytelling and appreciation for what is there (while still adding plenty of "new").
And, FYI, I'd not I am not a "What Would Walt Do" person. I grew up with WDW.