If you read that, quote again, he is saying "how can you quantify safety in a card?"
I don't like Musk or Grok. But not knowing what's a safety card is not a signal of anything IMO.
system-cards
https://www.anthropic.com/system-cardsYou’d have to be asleep at the wheel. For years:
Claude 2
July 2023
Read system card
But users don’t need to know you’re 100% right, you shouldn’t need to know this inside baseball (you didn’t pollute & compute & gain the responsibility).