If there was a button to start broadcasting it'd be ok, too. Or even better...
Just image this scenario: You're the GM and are preparing a page you'll need tomorrow. You're alone in the app, so no audio/video pops up. Then your girlfriend comes home and starts distracting you (by making diner!). Then a player starts his browser and it auto-loads the last opened web page (hi Safari!), giving him a premium view of your "dinner".