For purposes of this article, "open weights model" just means "you can run it on your computer instead of someone else's cloud".
Anthropic, meanwhile...
...sells controlled access to centrally hosted models. A regulatory system built around expensive pre-release evaluations, continuous usage monitoring, identity verification, and revocable access naturally favours large providers of proprietary models. Anthropic already possesses the compliance, legal, and evaluation infrastructure needed to satisfy such a regime. A university lab, startup, or community does not, even if they somehow manage to train a sufficiently capable model.
So it's very clear that regularly capture (and more broadly, capture of the consumer market on thinking thoughts) is the goal.