I think I've seen that before, not on here - but on TV. I seem to remember thinking that I was waiting for the controller to say "everybody shut the fuck up and let me think!!" I don't know what it's like at a busy airport, but if I was the controller - I sure wouldn't be clearing anyone for takeoff if I thought that I had potentially lost the bubble... Smart of the other aircrew to say "we'll just hold short for now, thanks..."