That's how I understood your post from last night, yeah. Although it still doesn't make sense to me that a mount that doesn't poll, with a folder created externally, would be able to refresh that particular folder. How does Rclone know of the new folder, even with vfs/forget?
The way I do it, I add to and create on an entirely different mount, and then later run a refresh on the static mount as a whole. Doing so allows refresh to recognize any and all external changes, even if I don't unmount and remount first (as it should).
Maybe I'm just confusing myself here...