Bah - your 3rd example is just a single site, and the second was actually caused by BGP. I'm not convinced BGP wasn't the problem with the first either ;-)
I have it on good information that BGP was the second gunman on the grassy knoll at the Kennedy Assassination.
BGP is something that makes everything more resilient when it's achieving its goals, not like an unknown assassin. Large-scale BGP harm almost always comes from a trusted, good-willed peer making an honest mistake.