Another incorrect comparison. Cranium doesn't provide an advantage if a SOD timer is used. If the time were to progress during the battle, then Cranium would be considered cheating.
I'm almost always not against playing with unlimited turns, for example. I know how everyone plays, and it's very comfortable to play against most experienced opponents in this regard. If someone takes 6-8 minutes only because they are stubbornly refusing to use Lighter (which is simply amazing for SOD!) - then that's their problem. What game advantage are we talking about? I really don't understand.