In the United States, Kraft and its former parent company, the tobacco conglomerate Philip Morris Cos. (now Altria), have successfully marketed Capri Sun using strategies developed for selling cigarettes to children.[2] American parents often misidentify Capri Sun as healthy, and it is one of the most favorably rated brands among Generation Z Americans.
The problem is right in the Wikipedia entry - its still way lower sugar than most competitors. So for an on-the-go drink, when the cup from home is dirty... Yeah its a healthier option than the others.
It doesn't make Capri Sun good, its just the others are so sugary that its one of the better options of readily available drinks.
Never knew anyone thought they were healthy. I mean I'm glad there is Vitamin C in orange Hi-C, but I know on the rare occasions I drink it that it is 10lbs of sugar in a 1lb cup