According to this article, a rather weak argument about people not liking to wake up before sunrise based on questionable correlation of commute times to sunrise times, ignoring factors such as average commute lengths, dominant (historical) industries, effective natural light at different times in modern housing.

From that it makes an (incorrect) assumption about the value of AM sunlight over PM sunlight and declares that all-year DST is pointless.

In my opinion the only argument against all-year DST which holds any water at all, and even then not much, is the concern about kids going to school in the dark. However, since many places don't have enough winter daylight to go around, trade-offs need to be made and kids are probably better off on-net having daylight time during their free time instead of while eating their toast inside and commuting to school.

Kids being forced to start school in basically the middle of the night is another especially American phenomenon that requires a separate solution, I feel.

What solutions have the non-Americans developed to deal with it?

Start school at a later time? Have other types od take home work if a day is shortened as well?