It is unfair to mock Vietnam for this article. The content is provided by ANI which is an Indian outlet. The article does not even provide a name of the author and his/her background. Who knows who is behind it.
My experience of the internet warfare is that there are lots of people pretending to be someone else shooting from both sides to stir up hatreds. Although I remember very well of the Sino-Vietnamese history, but I won't allow any unknown person to fool me.