I'm open minded but....
8%-17% increase in anything sounds a little to pat. Pat means convenient to some and bogus to others
Some mention of lingering "threat" of heart attacks sounds SO VERY unsubstantiated.
Also, Ben Franklin is said to have dreamt up the idea, so it has to be good. Only kidding. I don't want to create a lingering threat of heart failures.
Seriously, if that one about heart stress was true, I'd be for DST just so it could cull the herd.
Big cities have fewer on-the-road breakdowns because of alternate side of the week parking. Most breakdowns are "no start" breakdowns so making people move their steel twice of thrice a week is good. So if changing the ambient light will give some subset of the population a heart attack, we're better off managing that weakness.
Good goin' Ben.