Agreed.
I've used Angular 2, React+Redux, and now Vuejs on different projects (and on personal projects, stuff like om, elm, etc).
Vuejs feels like they cheated somehow.
For people in Redux-land: they took the reactivity of MobX and gave it Redux' level of debuggability. One important way, I think, is that Vuex formalizes the 'actions-dispatching-actions' use case of Redux middlewares (which redux says 'is not a part of the architecture, but is important enough to be in core'); in Vuex, all action creators can dispatch other actions, and it throws an error in dev mode if you try to mutate state in a non-safe way.
I've used redux for a couple of years, and felt the pain of juggling different libraries (especially the struggles to manage router state) -- Vue is a delightful experience. Its chrome plugin is ridiculously useful; its documentation always seems clear and helpful; things work together.
I can't wait to see what Alibaba does with Weex -- essentially React Native for Vuejs. I did a test spike with it a month ago, and am trying to keeping tabs on it ...