You gotta love those marketing departments. Hershey is, in essence, increasing its prices by giving you less chocolate for the same price. How do they spin it? By claiming that is a move to make their chocolate bars more healthy by having less calories! LOL. That's great. By that logic, why don't they have you give Hershey $2.00 and they'll just give you a wrapper. That's the most healthy chocolate bar of all.
Kidding aside, I hate these marketing campaigns that make candy and other junk food more healthy. If you are eating chocolate, you aren't being healthy, period. Don't fool yourself into thinking that you are eating a healthy chocolate bar. Just eat the real thing but limit your intake of candy. Control yourself. Don't eat it all the time. You don't need Hershey or McDonalds to make their food more "healthy." Just control how much of it you eat.
Actually dark chocolate does have health benefits, but moderation is the key.
Maybe they got the idea from Toblerone:
From a study done at Tufts University, "But the small group of volunteers with impaired NVC saw dramatic changes after just a month of cocoa intake. Neurovascular coupling improved by more than double, and scores on standard cognitive tests jumped 30%."