There's no parallel here.
Their ant logic is the following "oh you say bad thing about my country? I say bad thing about your country, let me see *checks list* oh yes 9/11, bad thing, I make americans mad, I'm smart"
They're not comparing the protesters to terrorists, that doen't make sense even for them, they're just trying to "react", to provoke.
But the difference is that their posts on weibo stay there, and if someone famous would say the same thing in China, he wouldn't lose his job for it, so their comparison is retarded.