I think the problem that I have with what they're doing now is that it feels like a wholesale trade in of Tomorrowland as a themed land for Tomorrowland as a commodity - as if instead of theming the place to any notion of Tomorrow (or some weird, cartoonified, gunked-up version of that) they've decided to theme the place to Tomorrowland™. It's becoming a playground masquerading as a hacked-up version of the vintage Tomorrowland, weirdly built on the grounds and framework of the original, with none of the meat that made that place work and offering no solution to the problems that caused it to be removed in the first place.
Not only is that a little too self-indulgent, but it's a relatively obscure reference. People like us can appreciate the new color schemes as a throwback, but does anyone else recognize that's what it is? I'd guess that most people - even people who visited back in the heyday of the original - wouldn't get it. So now the land continues to lack futuristic attractions to make the case for any tomorrow-ness, but now it also lacks any visual language that captures any culturally understood version of "tomorrow". At least you could say of the remnants of Tomorrowland 94 that they registered as futuristic-looking. '71 Tomorrowland isn't a large enough touchstone to communicate to the audience that it needs to speak to - unless you actively loved it the first time, you won't get it now.
Not to mention the even more obvious weirdness of the fact that their point of reference for design is now actively the past.
TRON at least suggests an arguably forward-looking aesthetic, but it makes it all the more surprising that they're trying to turn back the clock on the rest of the land instead of dressing things up to agree with the new neighbor. I feel like a "TRON-skinned" Tomorrowland would work much better than this retro palette they've literally painted the land in as a depiction of some version of Tomorrow, plausible or otherwise, and would work to actually unify the land and its old and new offerings. The work they've been doing throughout the land only seem to distance it further from TRON, rather than dress the space in a way that's sympathetic to the new construction. I figured that would have been the top priority of the reskinning.
If you're not building the land's content around the theme of "Tomorrow", at least let the setting sell that theme. Otherwise the name now truly means nothing.
I say this all passing no judgement on the people who like it, I'm just surprised to see Disney play it this way with their Tomorrowland Redo.