The first goal is to protect the data from foreign investors. The second is to force the companies to list in China. The third is to curb the monopolistic behavior of those tech giants to protect the new start ups.

The one that really surprised people is the crack down in education. That come really fast and thorough. Though I could understand the logic behind the move, it is still surprising. These tuition centers have become somewhat a cancer in society. They poached good teachers from public schools. They sell dubious and overpriced services to parents who worried about their kids' future. There is even a tuition center that teach kids to memorize books by flipping it fast. In many cases, the tuition teachers, who usually also have day job as public or private school teacher, hold back their teachings in their schools to force their students to sign up with the tuition centers they work for. Those students who don't sign up, will not have access to "insider knowledge" of what coming out in the next exam. But to be honest, closing them down will probably solve nothing, it will only force them into grey market, like becoming home tutors. I think China need thorough education reform, including big investment in public schools. Here China could learn from Singapore or Nordic countries.

As for the article above, there maybe some truth in it, but like I said, there are several goals that Xi tried to achieve here. All of them are important for China future, and yes, it is very risky move. Other countries, including the US, also want to reform their tech industry, but so far, only paid lips service because they still don't know how to do it without wrecking the market.