I disagree, IMO the funnel effect caused by seating areas is actually a positive rather than a negative and is likely why seated areas are considered safer by those in the know. The space is he issue, seating areas force space, they automatically split up the crowd even in the event of a mass exodus/ evacuation, in a standing area you are starved of space when everyone around you is trying to get out as well. I've been at many Bon Jovi concerts and whilst exiting from the standing area at the end of the show, along with thousands of other people, you do often feel a little claustrophobic and sometimes almost feel as though the traffic is moving you rather than you moving with the traffic. In the same situation if there is ever a mad rush to get out it's just an accident waiting to happen.
When I was referring to falling in standing areas I was obviously referring to sloped terraces. If you are wanting to see flat level standing areas I can't really see the attraction at a football game, flat level standing is obviously going to cause alot of people to have practically no view. This happens at most concerts I have ever been to, however unlike at a concert where the focal point (the stage) is above ground level, the playing surface of a football pitch isn't so the view of a football match at a flat level standing area is going to be terrible. Aside from the fact that I can't see the attraction, I still think they are unsafe, again purely down to the space issue.
At th end of the day you can argue that everything is potentially unsafe but I agree with the authorities that standing areas are more potentially unsafe than seating areas, and I'd say history has proven this. Also just because other authorities deem standing areas to be safe at the present time, doesn't mean that's necessarily the case. Isn't that like saying 'well, that guy just murdered somebody and got away with it, so it must be ok for me to do it'...?