There's a wide gap between the arguments "the open source model doesn't work" and "the open source model failed to produce anything as good as uv after a couple decades of python tooling churn". The latter is why people are understandably unsure of where things go from here.

Seems like you're responding to the wrong person. The person I replied to said the open source model doesn't work. Nobody said the thing in your second quote.

I get the point you're making, but the way you introduced it isn't conducive to productive conversation.