So make social and leadership skills part of the entrance exam to elite high schools/colleges and watch every one of these cram schools add soft skills to their lesson plans.
I'd also suggest adding ethics, but that's another conversation...
Did you get to one of the parts of the article where they talked about the classes to learn soft skills? It's a few pages in. It is true they don't learn it out of a book, though, it's much more like a tutoring session, followed by a practical.
Good luck. "Soft skills" are usually interpreted as a way to favor white people. If it isn't measurable, you're getting sued. And even if it is measurable, you're getting sued if advocates don't get what they want.
(Although poor social skills are not limited to any ethnic group.)
I'd also suggest adding ethics, but that's another conversation...