Yep, something I often say is that DisneySea as it is now is like a time capsule of what Disney parks were in the early to mid-2000s. For some people they'll love that, but if you visit multiple times at some point you notice the staleness. Most of the park has never changed since 2001.TDS had been left to stagnate a bit. It really was a wonder and real game changer when revealed. Especially since it's a unique park with modern large scale entrapments that actually had a budget.
But it's a pre-cursor in some ways to the Potters, Pandoras, Radiator Springs, Galaxy Edge's and even some of the notable pieces SDL did. By no means has TDS somehow gotten worse, it's just been stuck as a lot of the other parks and projects significantly closed the gap.
Like this project is quite literally over 10 years in the making. Frozen Land was announced in 2014 as the 8th port. The plans kicked off when the parks absolutely rebounded beyond expectation in 2012/13 post Fukushima. Worth the wait perhaps, but horrendously long gesticulating.
In a different timeline B&TB should have opened in 2019. The 8th port around 2020 and then the Tomorrowland / this major scaled project in 2025/26 or so.
It's again not that it has gotten less impressive, just everything else has gotten more so. JTTCOE was unequivocally the one of, if not the best attraction in the world two decades ago. Now I don't think someone would be wrong if it was not in their top ten.