The biggest arguments are more to do with road (and pedestrian) safety, with people and workplaces that obey 'the clock', regardless of what TPTB do with said clock. But depending on how you look at it you can value
either more hours of morning light (at the expense of the evening ones) or more hours of evening light (at the expense of the morning ones). And in spring/summer (more or less), when the summer-time daylight shift is applied to the clock, there are more hours of light, anyway and so it's really more a matter of pinching 'unused' daylight hours from the morning (dawn is still pre-commute, for most people, just less so) and adding them to the end of the day so that there's a lot more post-commute light hours for kids to play out, BBQs to be started up, etc, etc... (IMO, that works quite well.)
What
might be better argued is to carry DST on, past its usual reversion in the autumn, to make for really dark mornings, but not have darkness fall at (at my latitude, at around this time of year) 3-4PM. Although I've a feeling that a lot of the people who think this is a good idea (in this country) are coupling it together with getting the UK to match Europe's major time-zone.
Of course, if the plan is to have Winter on GMT+1, come DST time it becomes GMT+2 (double summer-time, something played with last century, for various reasons[3]).
To be honest, I don't see the fuss any-which-way... I used to receive phone-calls prior to 9AM, from my colleagues in Japan, telling me something that they'd been working almost all of that day on, it being now (for them) very nearly the end of their working time (engrained overtime culture, notwithstanding). In the other direction, I attended (and chaired) teleconferences in the early afternoon, for which the US west coast offices had had to dial-in at around 7AM. (With the added complication of their also losing a full weekday, either way, trying to mapping working weeks against each other, San Diego and Kobe probably also had a "your early is my late" relationship, but I'm not going to look up the zone-differences to see how far adrift. But I've a feeling it's 7 hours difference, give or take.)
Don't work in that job any more, but as you can see (local time, approaching 2AM, Monday morning) I have a really flexible attitude to time anyway. I suppose it would be different if I was forced to work switching and swapping shifts, but I find I can flex my own schedule around, so long as work and other commitments allow. I actually
did, at one point use what is effectively the
28 Hour Day described there, only with weekends being nearly 'normal' to daylight and weekdays being strange. I wasn't actually
working at that time, though, and it was just an ad-hoc arrangement rather than a plan, and I'd just make sure that I got things in the right direction to be awake around appointments and similar, albeit perhaps in a "my morning, their afternoon" sense...
)
[1] Give or take an amount of drift to counter/semi-counter the actual drift of sunrise/set hours.
[2] There was something on the radio about an author/farmer, the other day... Can't remember who he was, but one of the Americon Icons or other. He actually milked his cows after midnight and at midday, instead of morning and evening, or something, to work around his late hours working on his literary progresses. And apparently the cattle got used to that. But that was something fairly constant, and I still say farmers don't need to worry about changing clocks so long as they work with the time that the livestock thinks it is, regardless of what the men behind the clocks say it should be...
[3] Last time I wikied this subject, I came across what they did around the time of the First World War... Look up the history of BST and (if it's still there, and was accurate in the first place) it might surprise you.