I think it may be unhelpful once the jam has begun to criticise the theme/control scheme especially to the degree it begins to look like an argument and a bit off the point of the jam. The 5 possibilities for the control scheme were posted beforehand, and that would have been the best time to decide if one wants to participate or not... or we adjust the jam structure accordingly.
At this point, I feel the jam's kind of been torpedoed, rather than we've pulled together under the concept to work on it all together positively. It's certainly sapped my interest in hosting it.