This isn't 100% Anthropic's fault, although I'm sure that's part of it. This is the current corrupt administration executing on a grudge they have against Anthropic, and the government's new found love of picking winners and losers.
We now live in a world where captchas don't work, astroturfing is indistinguishable, school essays and theses don't prove any learning took place, open source maintainers gradually cease to accept stranger contributions, …
Moving the goal post now is a bit disingenuous. GPT-2 was a gibberish generator.
FYI, this was when Dario was still at OpenAI.
IIRC Anthropic claimed to have been working with the government on securing things with Mythos, but then they seemed to have been blindsided by this.
My read is that the guys making the decision to restrict it were not the ones that Anthropic had been working with, and it's more about Anthropic getting caught between infighting within an incoherent government.