Purely selfish on my part. I want TX to catch up with the rest of the world and realize that splitting is a valid way to move more traffic (and get me home sooner).
I see the helmet provision as a reasonable compromise when dealing with a general public that thinks lanesplitting is opening the door to reckless insanity on the part of motorcyclists. Nobody is forcing anyone to wear a helmet during all motorcycle use, and it may help help show car drivers the more safety-oriented side of motorcycling.
Edit: I'm not sure I buy the "personal freedom" argument. If this passes, my freedoms as a helmetless rider would remain exactly as they are today. I'd be free to not wear a lid, and I'd be free to not split the lanes.