There are a few possible explanations of Dario and Anthropic's behavior, if you are not sure if all they want is pump up the valuation like me:

- Anthropic has a cult-like culture. AI Safety is their religion. The AI Constitution is their bible. Dario is their cult leader. Employees are the apostles. They just really really believe their church, and only Dario is qualified to manage the AI safety.

- Asymmetrical risk. If Dario speaks optimistically about AI and he turns out to be wrong, he'd face the rage of many people. If he fans the doomerism of AI and he turns out to be wrong, at most he will be mocked.

- Regulatory capture. After all, pretty much all the AI big shots in Biden government went to Anthropic. They produced the Biden's regulation, and they made it clear that they wanted to pick a few winners to back.