The article also says:
> The reason that the Chinese, Russian and Cuban governments fear an open Internet more than anything else is that it allows users to gather and speak to one another. But users of a walled-garden “zero-rated” Internet can’t even click links that go outside the garden.
It's true that users can't go out of the sites they have free access to. But services like Facebook, Twitter and Whatsapp do allow people to "gather and speak to one another". In fact, Twitter and Facebook were prominent in the lead-up to the Arab Spring.