Data passed through provide is not reactive?

Question

Vue.js

The documentation says that data passed through provide/inject from parent to child is reactive. But is it really not? Or am I doing something wrong?
https://codepen.io/tantoo-app/pen/abzdmzB
Vue v2.6.1

Answer 1

The documentation says that data passed through provide/inject from parent to child is reactive.

Where is this written? I saw something completely different :

Note: The provide and inject bindings are NOT REACTIVE.