Fair comment. However it's fairly clear that there's a difference between a complex web application which pushes a library to its limits, and a page describing that application. The author must have known this and thought it'd be funny to be able to say that Facebook uses Vue in their flagship product. They really didn't need this to sell their point and should have just left it out. While it makes a humorous point, it calls into question the veracity of the other statements which otherwise could stand on their own