it may be easy to adopt this. but why do you want to distribute files throughout the system? as @j-ed stated already it is possible to change/move the whole data directory - files of every user, group folders etc. I don’t see any reason to selectively move files of some user out of this directory. this would only add complexity to backup and monitoring, managing access rights…
If you have good reason feel free to file an issue or even better a pull request at github…