On a practical note, what happens if he's in a wreck?
I work in emergency services, and about ten years ago I attended a special class on how to remove piercings from accident and trauma victims. It can be quite a concern, particularly with tongue and mouth piercings that become dislodged during an auto accident (or a bungee jump) and wind up in the lungs because they went down the trachea.
At the outset, I would of course be worried about lacerations to the immediate region as well as eye injuries from the piercing as well as the 'glasses'. Any metal parts may also serve to function as leverage against bones, including those of the nose.
All in all, it would slow his treatment in an emergency situation because rescuers would likely be unfamiliar with his particular type of piercing and may be hesitant to proceed with treatment, particularly if the region is covered with blood, at night, and they can't really tell what it is that they're looking at.
Otherwise, it would provide zero benefit to his overall health or ability to gain rapid emergency care. A resounding negative on all counts in my view.