Daniel, no not missing the point, but as soon as you mention awards/cross assoc etc. basically competition where "flash" can count, you can get problems.
The xma immediately sprang to mind as the program I watched showed very athletic ma practitioners who, because the trend was towards crowd pleasing (yet still difficult) techniques went the flashy route at the expense of the martial.
All for a bit of fun, but it would have to be managed very carefully for it not to be floating ukes and ki-blast strikes. Perhaps the ukes could be provided by a different association for each team and the level of cooperation for each demo assigned in public? Now that could be fun to watch, with both nage and uke being graded on their level...