Not gonna happen here, but it should:
While lane splitting is practical, necessary, economical, reasonable and safe, there aren't enough motorcycles on the road in the US (even CA or the rest of the west coast) to make legislation worthwhile. Like the foolish "Start Seeing Motorcycles" campaign, there needs to be a lot more motorcycles on the road before anyone will care about making motorcycle commuting more efficient. Who cares how easy and efficient it could be for people commuting on unicorns or Pegasus? There is no such thing, so passing laws to make life easier for imaginary transportation systems is silly. Likewise, with 0.001% of the traffic on the road being motorcycles, who cares if we get there faster?
I disagree with their position on riding with a finger or two on the front brake. Braking is the right response only occasionally and can be catastrophically the wrong move more often than not. Preparing yourself for the wrong move with poor technique is a dumb idea.