Moving assets into a Resources folder so they can be dynamically loaded irks me a little, as moving assets around can easily mess up a nicely organised asset hierarchy.
The video mentions that Unity can “follow the references” from anything in a Resources directory to include all dependencies, which makes me wonder if there is a way to add a “shortcut” or some kind of “link” to each asset you want in the Resources folder, without actually moving them in?
Could one simply add a prefab with a Component defined that just holds a user-configurable array of objects, so that the user can simply drag/drop all required assets into the array and have Unity pick them up? I imagine some logic may be needed to allow for lookup by name, though.