Hi phydeux,
I hope I didn't sound like an alarmist. Personally, I'm not that worried about a mountain lion attack either because the probability of it happening is very low. Heck, I rarely see any wildlife anyway, other than a deer or some bighorn sheep. Actually, I have seen a rattler and it was going off really loudly, just a few feet from the trail at the lower portion of Icehouse Canyon! Anyhow, for me, I just like knowing and being prepared for all risks, big or small.
That site you listed is really great but it also lists a few recent attacks in California, such as the unusual dual attack on two mountain bikers in Whiting Ranch in 2004, an attack on a women in Johnsondale, also in 2004, and the attack on the elderly couple in 2007. Of course, there was also no known attacks in California for 8 years from 1996-2003.
Again, I'm not trying to scare anyone, and we shouldn't be paralyzed by fear every time we go hiking (although, personally, when I go I always have some level of fear of everything because it helps keep me in check).
Still, it's kind of like avalanches. Over the last 10 years only about
25 people per year die in the U.S. in avys. That's pretty rare compared to traffic accidents and I've never even seen an avalanche in person, but they still really scare me.