The README.md file and linked blog posts have more info on the topic (e.g., goals and roadmap of the project). Sensei Grid will always be simple and there won't any fancy or extra features than the bare essentials for a data grid. Additional functionality will be provided through plugins or implemented by users.
After first glance it seems that Dgrid requires dojo framework which I have no interest to depend on and also provides too much functionality for us. Datazenit needs something simple, stable and extensible. Sensei Grid will definitely have just a tiny fraction of Dgrid features. If you need something fully featured and complex, then Sensei Grid is not for you and you should stick with Dgrid or any other alternative.