I suspect that this isn't new. Even 30 or 40 years ago, some high school children were too busy to pursue relationships.
For some, it changed, and they dated. For others, they remained relationship-free into and even through College, and then, after finding a career, they dated, and eventually married.
The point of this article is obvious. The whole meaning of having a relationship has morphed into something that may indeed be "Bad", as far as intimacy is concerned.
This is just another sign that things are changing. So what else is new?