A few comments from a commentator....
What matters to roboteers and audience is that the rules are clear.
The pit rule at the 2012 Champs was clear and articulated clearly at the start of the event, and I heard it reiterated a number of times before roboteers went in. Therefore the competition is totally valid, the rules were consistent throughout. Were they different rules to the rest of the year - yes, but that doesn't make the winner any less of an achievement. To start to call the validity of the competition into question dis-respects all those who took part, and those who won.
Audiences only get confused when strange things happen. In a one on one fight if 'Cease' is called as soon as a robot is pitted, there is no confusion for the audience. If a robot goes in and thrashes around for 29 seconds whilst the other one sits and looks on, one could argue that's far worse entertainment for the audience when balanced against the few robots that can get out.
In the 'old days' the Pit of Oblivion was just that, and in my view the idea of a 'sudden death' is actually needed in the fights - like potting the black it offers a totally different and unique hazard in the arena. It levels the playing field, and encourages people to build robots that aren't flippers
However, going back to the topic, everyone taking part knew the rules, everyone knew they were different - please think how you would feel if you triumphed in the competition, playing by the rules as set, and people started calling into question the validity of your achievements.
There is plenty of room for rules to change, whether like John you are trying to run a commercial pure entertainment event, or like the Robots Live guys it's more of a community effort. Both types of events have totally equal merit, and provide differing degrees of audience engagement, interest and interaction.
The single most important thing is that rules throughout an event are CONSISTENT.
