Could that be because of the video screens though? Meaning that not everyone has to venture down the front to get a decent view, so less crowding in the venue. That's one thing that I would like to see all festivals do if they could afford it.
Far Out always becomes pinch point central after Sunday midday because of the cordon around the Green Man, I forgot last year otherwise I would have chosen where to land a bit better.
I've missed shows in Tipi and Big Top because they were full but never been stopped entering a venue at Green Man so I'm inclined to agree with you in respect of Tipi and Big Top.