I agree. In a perfect world React is probably a better choice. But the world is not perfect. I don't have time to investigate a gazillion third-party libraries and educate myself on best practices. Vue is a nice complete package with great documentation and excellent first-party libraries (vuex and vue-router). It's basically a one-stop shop into modern day Javascript. Ideal for smaller teams or teams without JS experts.
To me, it's one of the easiest frameworks to teach and maintain.
While I believe React is technically a more correct way to write applications, it can be very heavy-handed. Vue is a great compromise for mixed front-end / full-stack teams.