Feedback Support for Tilemaps in Prefabs important or not?

During the development of a game project using Unity's Tilemaps, I became frustrated with some aspects of how Tilemaps and the Palette work. Within the project I created a new Brush, Brush Inspector, Selection Inspector, Tiles, and editor tools to solve my issues. It was a trip down a rabbit hole, for sure.

Making a long story short, I think it's something that other people could make use of. But there's one caveat: it won't work with Prefabs - in the sense that if you create a prefab from a Tilemap, or from a Grid that contains one or more Tilemaps, then that prefab won't restore correctly when you drag it back into a scene or try to edit it in a prefab context.

For my own work this isn't an issue, as I don't use Tilemap prefabs, I use scenes with a Grid and Tilemaps, and load them additively-async. It's much cleaner, at least for what I want to do.

Interested in what others have to say!