Right, except there are studies suggesting lane splitting is actually safer than not, so I don't think it's even in the same ballpark to compare it to speeding and stunting. In fact, your comparison is laughable. What do you think of when I say lane splitting? Do you imagine a bike doing a rolling burnout at 150km/h on a highway? Because I'm imagining rolling past going 20km/h.
Once again, as somebody who has split almost every day for the past 3 years on a bicycle in traffic with ZERO hassle from cops and other cars, as well as no close calls I am inclined to say it's safe.
There's also a reason it's been made legal in some counties now.