The author put zero rational thought into this. If Anthropic is legally required to release the weights of any publicly accessible model, their logical response will just be to stop offering public models. Anthropic gets most of its revenue from enterprise agreements anyway. Providing public models or providing public access to their models is their secondary business. They can cut it off any time. Public access to their models (at subsidized rates) has caused so much indirect harm and financial cost to them that they're very well justified to stop providing access.

Anthropic has already shown they're very comfortable with holding models from the public. Mythos has been around for what, six months, and there's never been a public release. Only the select few blessed by Anthropic have access.

Forcing transparency on public models will just accelerate privatizing access to these models. You don't want to live in that world.