Remember -- no matter what the APPEARANCE is of transparency NO meeting is really transparent.   

US Congress broadcasts everything ...doesn't work.

 I could annoy everyone, park streaming cameras in the room and broadcast every minute --- the companies and others would simply alter what they say and tailor it to an audience and most would be silent....  then at dinner people would break off into groups and end up talking over coffee until 2am ...if we recorded dinner convos they'd head to the bar...if we recorded thst they'd head to their hotel rooms.

My suggestion:  anything you are concerned about, publicly ask a company what their position is and hold them to their words