Tried Angular, ReactJS and VueJS and to me, they have their own strengths, but all are more than capable as frameworks for building large and solid enterprise l

Tried Angular, ReactJS and VueJS and to me, they have their own strengths, but all are more than capable as frameworks for building large and solid enterprise level apps. IMO, productivity and simplicity has Vue winning my preference. Reading the article, I was surprised at this part: "Wait, did I just write Facebook? Check Facebook’s newsfeed." I did checked facebook's newsfeed and certainly, the Vue Devtools lit up on my Chrome browser, which detected VueJS being used on that page. Given that FB has heavily leaned on React, I wonder why they would be using Vue on one of their premiere pages? Is it because they are also trying to analyze what's being offered by Vue and integrate it with React in the future?