I'm sorry but this is mad. On an event this size, even with the massive amount of planning and organisation that we all know Showmasters does, there will inevitably be problems. There is no way that with something this scale you can predict everything that could go wrong, and I'm suprised that you expect them to be able to. Unfortunately, realistically there will always be mistakes that have to be learnt from. Be thankful that Showmasters and Jason actually do act on the mistakes they find, and do what they can to find a solution before the next event.
Also, sending surplus staff home? Really? You realise that most of the crew are volunteers, they're not getting paid and so would-rightly so- be fairly unhappy on a wasted journey. Even sending the paid crew home is unacceptable and unrealistic. I'm sorry if I come off as harsh about this, but your post really is unfair criticism.