I know it's sometimes considered not very nice to suggest this but I felt the exactly same thing, about exactly those phrases.

I wonder if we're going to get to a different singularity, where, regardless of whether it prose was AI assisted it (1) leaks into people's way of speaking, (2) is out there frequently enough that people are skeptical even of normal prose.

At the very least, we're long past due for a word to describe the "it isn't just X, it's Y" formulation. In my opinion it's worse and more rampant than the em dash (and I like the em dash when used responsibly).