I see is as a move to get rid of folder-tree-structure way of thinking and just use the Database with the superior available tools. There is nothing that can be done with a folder structure that cannot be done better using the database tools.
You can't browse folders for a start.
You can't find things whose names you've forgotten, but can easily find when you glance through your folders.
You cannot use any software other than the database organiser [LR] to find stuff, in a database so no using a file browser like Bridge/Explorer/Finder to access any of your work.
Keywording your work so that is easily found is
an awful lot of hard work.
Too many false positives with database collection searches in my experience make it unusable at times. Evernote is painful like that and LR can be too at times when items than have apparently zero relation to search appear.
Too many results for regularly photographed items can overwhelm simple keyword searching.
Files have to go in folders anyway, so why not do it neatly, it takes so very little effort, particularly compared to keywording files. I can find my work using any OS or any browser as well as via LR. Often faster via folders. Not to mention folder naming can be an excellent form of keywording in itself.
Using both well organised date/description folders allied with keywording is far superior to using either system on its own.