My take is similar to Pete's, I think.
I'm confident
Disneyland/world is still a safe option. I'm sure its safer to spend a day there than to drive to Tahoe or Monterey.
On the other hand, I am not confident its as safe as it was in the past, and further, I suspect it's not due to uncontrollable factors.
I find the Space Mountain incidents very disturbing, as well as the way the carousel problems surfaced.
I also hear the comments from Disney management about aggressive cost-cutting that has no effect on the guest experience. Since I have seen the effect on the guest experience, I know that these comments are stone cold lies. This makes me wonder about what other impacts the cost-cutting is having, including with regard to safety.
It gave the feeling that eventually, something terrible was going to happen.
Now, it has. In trying to think logically, I have to allow that its possible this is all just coincidental, but at the same time, I can't logically ignore the very significant chance that its not coincidental at all.