Removing the link is probably a sensible idea - the GR game seems to be simplified and aimed at new players, which would imply a younger target audience than the console/pc game itself.
I was 11 when I first played D&D (and we didn't have the Internet back then lol), but my parents would have gone ape if I'd have gone looking for info on a new boxed fantasy adventure game called Dragon Age - and found myself confronted with the blood spatters and severed heads on swords that are prevalent on the Bioware main game site.