They think they can hire less SWE because of it. Though from my experience all benefits it gives are neutralized by mistakes or does. I have to pay more attention to what it produces to find bugs (and they are subtle, and even then successfully sneak them).

I also frequently notice that I actually can produce more concise code for my user case.

And it is plagiarizing (Microsoft apparently provides some legal protection against a lawsuit, but I don’t know if that is for everyone).

A while ago I found a bit less popular code and it came with library. I didn’t like their implementation so I started writing my own and copilot basically was suggesting the code from the library I tried to rewrite.