As a passenger in a car, watching motorcyclists zip down at high speed on the lane markers between cars in dense, stop-and-go traffic was incredibly unnerving. I can't see how that's safe.
If you follow the lane splitting laws as written, it is actually pretty safe.
It is like the stupid people who say all cyclist burn the lights. They are just so jealous they only see the one that do and completely ignore those that stop at the lights.