The package bundler parcel is one of the easiest to use. You don't have to touch to configuration, it's like a plug and play bundler. I used this version with my students and we encountered some difficulties to use the last version and we have to downgrade to the 1.12.3 version to perfectly be fine with it ! Even if there is a "zero-configuration" bundler, you'll have control on the entry file, or configured build output and more ! Use it when you want a fast bundler !
All coding experience I had while use Angular was really pleaseant, I agree that the learning curve can be thought but when you know the basics and master it you'll love to dev Angular app's ! I teach Angular to students and think that the Angular way to separate component is a very practical way to do it. The architecture is a real benefit and the cli are nowadays a must have for the frameworks on the market.
Your library is very useful, to help dev to overcome the datatable presentation and customization : with this lib you can customize your data source and even let your user reorganize columns of your datatable ! Your documentation very complete ! Thanks again !