Just like SFM, It's up to community/devs to make addons that are simple and useful. Blender has many ways of linking rigs/collections and understanding each method is headache inducing.
This addon simply asks you where you store It and If Its marked as Asset.... Done. No more headaches.
Perfect, save a lot of time
Really helps when working with many external rigs, keeps file size small and no more copy and paste from one file to another
Good extension is good
Very useful for keeping .blend file sizes low and reducing the hassle with appending from other files.