I can confirm this. i rebooted the core last night to add a new piece of hardware. When the system came back up, the symlink I created was gone, and it was replaced with a standard directory.
As creating a mount point in fstab is a BAD thing, I would make note that if you reboot your core, you will either have to add a script to delete and re-link the directory, or remember to change it back.
Please note that using a mount point is not a good road to travel.
- edit - By the way, that was the longest period of time my core was up, 17 days, guess I finally got the right hardware setup. A note here, I do not run the media station, it only starts the core services on boot.