LLMs take the whole argument away. Yes, maven/gradle/sbt suck to work with. But now you can just generate it.
Yeah, it seems like Maven is designed to build just one project with relatively little build-code (although, figuring out versioning of the libs used in your build can get tricky, but guessing this is how it is in most languages). It's still one of my favorites build tools for many situations.
I use LLMs to maintain them now. I keep the build files simple. It was an inconvenience before, but a trifle now.