I don't really understand why there is a need to simplify something like AngularJS. Kudos for building something but I'd rather stick with the battle tested version thanks. If you're building a single page app then the initial payload isn't a big deal anyway, so I don't really care if it's a few KB less.
Your simple example is (IMO) more complicated than the AngularJS version, and Sentinel JS requires Jquery:
Please correct me if I'm wrong, just don't see the benefit of using this over AngularJS, you're ultimately going to want more functionality anyway.