I've done four on their list: Barr Trail, Mt. Washington, Muir Snowfield and Mist Trail and agree that the concept of the story is to have a wide geographic coverage for their magazine and a headline that attracts attention, while the more subtle message is that there is danger everywhere.
I'll check this out further when I receive my hard copy of Backpacker but I'm hoping that the story gives tips to be safe on each of those hikes.
For example, on Half Dome this summer perhaps a third of the people I saw coming down the cables were facing out and slipping and sliding like crazy rather than backing down in a rapel. And then there were the impatient ones who wanted to push by you, even though you were waiting in line for the folks ahead of you. And those who stepped outside of the cables to get down faster! were lucky not to have met the nasty fate of others who have done that.