I don’t understand why importing the ride unchanged should be seen as uncreative. Isn’t the much-vaunted Tokyo Disneyland full of like-for-like transplants? What exactly do you think needed to be modified or adapted for the ride’s Epcot manifestation?
Because the Paris iteration doesn't work in the story of Epcot as is. The attraction was originally designed to be part of Toon Studios. Meaning it was meant to showcase the fantasy version of Paris created for the cartoon film Ratatouille. And the story, architecture, etc. reflect that. And today, it is a main part of the Worlds of Pixar - meaning a land that recreates the fantasy locations created in beloved Pixar films to celebrate those Pixar films.
World Showcase is (or was) about showcasing the culture of countries around the world in, admittedly, a romanticized way.
That means it's not a huge leap - but the stories don't line up directly. For example, the cartoonish facades, Gusteau's being with a cartoon person vs. real person, the story being about Remy and his creation vs. him teaching about French culinary techniques. These are the missteps. It's not that the attraction couldn't have been 90% cloned. It's that it needed tweaks to work in its new location.
Perfect examples of this are things like MK's Pirates of the Caribbean and many of DLP's versions of attractions. If they had plopped the DL version into MK's Adventureland as is, it wouldn't work with the story of Adventureland. Similarly, if DLP's Space Mountain had been a gleaming white mountain with a modern launch cannon, it wouldn't work in the Verne-esque Discoveryland setting.
Here, because it takes place in Paris, it works as is - that's the mindset, I fear. (And, the execs have notably wanted to get away from the "barriers" they see to the lands being locked in story-wise. It was a main beef with Rhode, as I understand it.) The point RAT (and even FEA) makes is that the adjustments aren't tough. And, while some just let it slide, there is a significant amount of the fan base that sees this and is really, really put off by the constant destruction of what set Disney parks apart for so long.
I appreciate that you see the fit and may not see what I've raised as a big deal. But, there is no denying that Disney used to care about things like this far more than they do today. And, for many, that was the "Disney Difference".