Sure, it's not that the idea of the Gaussian Copula itself is wrong. It's a mathematical theory, the only way it can be wrong is if there's a flaw in the proof. The problem is that people were overeager to apply the GC as a description of reality. Why? Well, my belief is that it has to do with overmathematization.

Really, it's odd that there is so much pushback against this idea. To me, it seems like a natural consequence of the Hansonian maxim that "research isn't about progress". People want to signal high status and affiliate with other high status folks. One way to do this is the use of gratuitous mathematics. It's just like those annoying people who use big words to show off.