This? That's a case about executive privilege, not the attorney-client privilege.
I was responding to what appeared to be a legally erroneous assertion that having multiple people in a room will destroy the attorney-client privilege (or render it inapplicable), which is not necessarily the case. An attorney can have legal-type communications with multiple people in the same organization at the same time, and the attorney-client privilege will cover it all. This is not subject to real dispute. Happens all the time. You could not conduct legal business otherwise.