I'd disagree. Every rule set, for grappling, skips over and past types of preliminary maneuvering that could prevent the later and more final entanglements. If you don't have rules that make things happen by artificially placing grappling competitors into otherwise-avoidable danger, then the greatest grapplers in the world would all be stand-up gripfighting specialists. Because nobody can ever get anywhere against a gripfighting stand-up specialist, no matter how good a grappler you are, under truly open and unrestrictive rules. They will just stand there gripfighting the shit out of you until they get a point or such, and then the match is over, you can never get back in it. Grappling consists of nothing more than gripfighting for points. This has negligible real-world application, and in no way means that such a fighter is the greatest grappler.
That's why elaborate gripfighting is now outlawed in judo, there are rules forcing engagement, lots of penalties, etc.
There is nothing wrong with placing grappling competitors into more advanced stages, and more unbalanced positions, of a grappling match. Particularly since grappling is supposed to be advantageous for fighting, and real-world fighting rarely involves the preposterously elaborate and infinitesimal maneuvering from relatively safe positions that you see in open-rules neutral-position grappling. The 'angry crab' that dominates BJJ competition is pointless in any real world fight. Those guys are getting punched in the head and kicked and such, or they are blind-side tackled, and so there is a genuine need to fight effectively from the types of fighting positions in which *shit is actually happening*, not safely fighting for millimeters of grip from neutral.
I agree that rule sets need to impart urgency to one or the other competitor, but that is exactly what truly open rule sets like Metamoris DON'T do. Positional points are better than Metamoris rules because they create some added urgency once somebody gets a point, but from what I've seen to date, EBI rules are better still.