Criticism of the government is absolutely vital. It's the very reason why free speech is so important. And that seems to be what the article is addressing.
Using "free speech" to silence and persecute minorities, and create a hostile atmosphere for them, is the opposite of free speech, abusing the space it was granted by free speech, and inevitably leads to serious restrictions on free speech, as we're currently seeing in the US.
These two things are not the same.