We are not going to contact them on your behalf, and a note from someone who actually uses the guidance is worth more than one from us. Here is a version you can send. Change it to sound like you.
Making CIH guidance available to AI assistants
I use CIH guidance in my work, and I increasingly see people asking AI assistants what it requires. The answers come from whatever the assistant has read rather than from CIH directly, so they can be out of date, can drop the parts about where the guidance stops, and never point to who to speak to. There is a non-profit project called Relay that lets an organisation publish its own approved material so those answers cite it properly. The organisation keeps control of what is used and can withdraw it. It looks worth a look: https://www.humanityincorporated.org/relay/find/cih