This is specific to recording of phone / video conferencing, not matches.
Federally, and in most states, at least one party to the conversation must be aware of the recording in order for it to be legal.
Some states, including FL and WA, require everyone who is party to the conversation to consent for recording to be permitted. By stating their unwillingness to consent, an audio or video recording of the conversation would be illegal. Things like meeting minutes would still be permitted.
I think the goal here would be to prevent any party to the conversation from leaking audio / video of the meeting given the controversial nature of the proceedings.