If you're at a latitude that only gets 8-9 hours of daylight in the winter, there just isn't much daylight to go around. If you're adding it to the evening, you're taking it from the morning.
While I agree that the sun setting at 3:30 is a drag, I'm not sure pushing that to 4:30 really helps much.
During the summer, when you push sunset from 8pm to 9pm, that's at least an hour most people get to use (they are still awake and not working), and you're taking away an hour from 4am to 5am which most people don't (almost everyone is asleep).
During the winter, you're taking away an hour of daylight from, say, 7-8am, which most people can use (it will either be during their commute or before their commute, which they can enjoy themselves) to add an hour from, say, 3:30-4:30, which for many people is still going to be in the middle of their workdays.
Florida's case isn't quite so bad as that. In Tampa, FL, they are in fact taking away people's 7-8am sunshine in the winter, but they're at least adding sunshine from 6-7pm which will be fairly useful sunlight.
I'm just not sure it's useful for anyone much north of Florida to follow suit - you're trading valuable pre-work daylight for during-work daylight.