Maybe, but even if that is the case it's sooooo much better that even the worst case (fork when they try to monetise it) is way better than any alternatives.

> fork when they try to monetise it

To maintain a successful fork, not only are you going to need to find people who volunteer for maintaining a fork at that scale (including a large user base due to popularity), you’ll need to find skilled Rust developers, too.

That’s going to be immensely difficult.

I mean, maybe. But I'd still much rather take that risk than flagellate myself with Pip or Pyenv or Poetry.