I don't think GP is suggesting that you step out in front of cars and hope for the best, but rather that you cross in places other than those which have been deemed for crossing. In theory, walking a half mile to a crosswalk, waiting 30 seconds, crossing when okayed by the light, and walking a half mile back should be "safer". But just walking across the road when safe requires an understanding of how traffic works and how to judge safety.

It might be Baader-Meinhoff phenomonon, but In the past two days I've seen multiple pickup trucks hopping the curb in places that I find shocking, so I'm becoming more inclined toward taking safety into ones own hands. The system clearly isn't working.