It's not just that the styling is bland and uninspired, but even the basic building systems are done sloppily. In addition to the nonsensical faux-architectural details that have already been discussed in this thread, the air conditioning vents are plainly visible and distracting on the flat ceiling.
One of Disney's classic tricks that they've used in countless buildings throughout the parks is how they "hid" its HVAC vents in the faux wooden beams:
As an alternative, Tangerine Cafe "hid" them along the border where the white sloped parts meet the blue flat ceiling:
None of these examples truly hide the vents from view, but instead they do that magical thing that tricks your eye into looking beyond the obvious and seeing something that isn’t really there.
Meanwhile, the new creperie just sort of places them randomly all over the place. They're not incorporated into the theming, nor are they evenly spaced between the beams. They're just sort of there, taking up space.
In this area, they don't even seem to run between the beams, but are oriented perpendicular to them:
It's not like this building has unique structural constraints that wouldn't allow a solution like this; it’s new construction and a simple box of a building. They clearly cared enough to make them the long linear vents, rather than the standard square or rectangular vents found in most commercial construction, and then just sort of gave up after that.
Yes, of course it's more difficult to incorporate things like that: it takes the foresight to anticipate where the utilities will be located, coordination to obscure them from view, and detailed work to install and maintain them. It takes designers who are experienced enough to know in advance that it will be an issue, creative enough to find a solution, and dedicated enough to ensure it is done.
It's not the easy thing to do, but it's literally the Disney Difference that set their parks apart from their competitors. The Disney Difference was never truly about the characters or the flashy shows, it was the way that they concealed the necessary-but-ugly infrastructure in a way that tricked your eye into ignoring it and focusing elsewhere. That was Disney's bread and butter for so very long that it came to define the brand.
And now they're not even getting the most basic elements of it right.