Might be unrelated, but I feel like the "boost" that everyone is talking about is cause by translating one medium into text, which most people are more capable at than the medium they are trying to produce in.

While it lets you create something you previously can't, the qualities of the medium are replaced with those of languguage.

I.e. to produce visual images you don't need an understanding of conrtast, composition, tranparency, chroma and all that, you just need to be able to articulate what you want.

I think that's where the lack of taste appears, you have a text-based interaction with a non-language medium.

How when a movie tries to keep as close as possible to a book it rarely will be a noteworthy movie, versus something built from the ground up in that medium