I think that's a good start, but the baseline of what AI can do. These scripts are around since filesystems have been invented. And you can do this with one (lengthy) shell command. Or one of the already existing file sorting utils. (something like ~~this~~ [Edit: see next comment] or Hazel or DropIt) With those you can even configure if it should recusively visit subdirectories and do individual subdirectories for the filetypes or mangle everything together for example in one big unsorted mp3 directory.

What I'm waiting for (I'm not OP) is something that looks at the content of the files. Do a directory for all the manuals I downloaded for the household appliances, find out on which event I took a photo and make a correctly named album for that, find the project files for my diverse electronics projects and file them into seperate directories together with related info. And find the mp3 files and TV recordings with a mismatch of metadata and folder structure.