That's the whole point: they seem to be using deep packet inspection to mess with all DNS traffic regardless of the DNS server being used.
It's not like our government is blocking anything (there were rumors it was blocking Facebook in 2011, but it wasn't true as I was able to log in without any issue. It was just slow, but it's not like we have the fastest internet here).
But it's nice to know. Thanks for the clarification.
Plus how can you tell it isn't the actual Facebook if everything is there, status, etc, comments, pictures. I can chat with other users, send messages, etc.