I agree that dying was essentially a good thing, and that this should be reversed.
However, I don't like downtime, downtime is no fun, and this is supposed to be a fun event. I agree that a simple minus pts for dying would benefit superheavies, however I think you could balance this by having the penalty be appropriately higher for super heavies that died.
Furthermore, I think we should just ban ramming from off the board edge. It is technically possible to do in regular 40K, however it's actually a much more technical and finicky process than people realize. Most people were not doing it right, at all, but it frankly was possible within the time constraints available (i.e. 60 seconds) to show people how it may, and may not, be done. Also, as everyone realized, the tactics of off-board ramming change considerably when you can come in from any spot you want.