This seems to be far afield of what I'd typically expect to see in an RFC.
Not that they're of the same ilk as RFC 9446, but they're even further afield.
[0] https://en.wikipedia.org/wiki/April_Fools%27_Day_Request_for...
The latter half of your comment is factually incorrect: I’ve been a member of both IETF and ISO cryptography-related working groups and seeing people who work for NIST or NSA is not uncommon.