This is not a bad compromise, but when you do as you suggest the OSX system does not recognise the alias folders as local to the file system on which they are mounted. Therefore when you drap and drop items into these alias folders you leave copies of the original file instead of moving the file. This makes for a very bad day-to-day interface.
I know the reason for wanting to simply re-map the Documents folder. Believe it or not 'apple' its very useful. For many years I re-mapped Windows XP and, Vista etc etc, default folders, onto a Debian server running Samba. It worked without any problems and felt fully integrated into the OS. It worked equally well alongside Linux Ubuntu desktop/laptops etc, all sharing the same default folder structure on the Linux RAID array. I subsequently upgraded from RAID to SSD. Everything moved over seemlessly, but not OS X. Not being able to do this re-mapping is wierd. It makes integrating OS X alongside other filesharing systems difficult.
I have always agreed that having default folders was a better way to handle files and multiple users. But OS X's current approach is filling up my hard-drive with copies of files I want to be stored only on the nice safe (secure?) Debian based file-server that has been serveing me well for over 7 years. Ahh MAC, its seems they don't JUST WORK, well not all the time.
I keep trying. If anyone finds the secret sauce let us know.