Let’s face it, Facebook has a long track record of abusive behavior. Open source projects aren’t immune to Facebook’s machinations - they already attempted to relicense React for political gain once
. What’s to stop Facebook from relicensing React again or including tracking software in React? I doubt Facebook is done looking for questionable ways to leverage React’s adoption, because the impact on Facebook is minimal if React adoption drops by 50%.
Vue, on the other hand, is an independent project. At this point, if there were a mass exodus from Vue, the Vue core team’s livelihood would be threatened. That makes a licensing scandal, a massive backwards breaking change, or user tracking unlikely.