Thanks for your feedback.
I agree that Grid.js is not a full-featured plugin _yet_ and it's still missing essential features, like those that you mentioned but please bear in mind that:
- I have only released the first version of the library.
- I have been focusing on fundamental blocks of a lightweight _data processing_ library (see: https://github.com/grid-js/gridjs/tree/master/src/pipeline). That's what took most of my time.
- Grid.js is framework agnostic which is a bit different compared to other libs
The pipeline is very easy to extend and I'm confident that most of those features will be added soon.