For an employee at NIST who operates a NIST email address to claim they have no association with NIST is farcical:
https://web.archive.org/web/20251122075555/https://mailarchi...
That's not what the message you linked claims at all. Maybe you missed the "in this message" at the end of the sentence?
What is your agenda?
”No association” and “I am not a representative” are quite different things to say.