I listened to Kay blabber in the recent video. If I'm not mistaken, Zerify Meet allows the meeting organizer to assign an individual username (email address??) and unique password for each invitee. Those credentials need to be typed in by an attendee before they can join a meeting. If someone passes their unique credentials to someone who then "bombs" the meeting, there would be a way to trace the "bomber" back to the invitee's.
On the flip side, conducting virtual meetings can be clumsy enough as it is. Requiring that each attendee type in their ID/password will only make the process even more fraught with potential failure.