I've just watched the finals (thanks to Neal for the footage
) and I honestly can't see what's dangerous about that cross over jump. It was straight after a tight 180 degree corner so speeds were very low. The cars were getting somewhere around knee height and no one was able to get huge distance. It would be classed as a bobble on the track if we were racing outdoors!
Personally I think they're a great addition to the track because the room to work with is so small. We could say no more jumps but what would be the fun in that? I'm not saying we risk peoples safety but we all know what happens when there's too much red tape. You've probably got more chance of falling off the stage and hurting yourself.