I'm just thinking we already do it using buckets and carboys, and usually to no ill effect. Just everything I read about the FF, you don't want to take that top cover off.
Gotta think you gotta crack it a bit when you go to empty it, otherwise it is going to create a) either a vapor lock, or b) suck the fluid in the air lock into your beer, and thus pulling O2 in with it, (or both)
Just trying to decide if Santa should bring me one of these this year.