While I do agree that the apron position is a annying, that slot is already being used for bill takers or optional external volume control/headphone stations. I doubt that they would ship a pin that way stock because then those that route games would have to remove it and re-install somewhere else. Also, this is probably the spot that is the biggest attention getter on routed games.
What I don't know is if there enough room above the bill taker spot to mount it (i.e. internal clearances). I'm not really a fan of it in general, but I would create a 3D printed housing mount that either connected it to one of the front legs or just under the front of the cabinet. I'm sure there are already multiple solutions out there, but I've not cared enough to research.