The article quite clearly mentions competition:

Because I'm a freelancer dev, and also a trainer, I get to navigate those waters and I've seen all other tools fail spectacularly. pyenv, poetry, pipenv, pdm, pyflow, pipx, anaconda...

As well as discusses anaconda later in relation to CLI and GUI.

The speed is really fantastic, there's nothing else I can say. If you don't see a benefit, the it's fine of course. But going from insanely long resolution times in my previous work place using conda to now resolving stuff in a matter of seconds is incredible. uv is the first tool I have used for Python that just feels right.

I recommend listening to the podcast from Real Python that talks with Charlie, they discuss the commercial aspect https://realpython.com/podcasts/rpp/238/