Alpha Quadrant Sourcebook

Regarding the Grazerite species talent, Horn-Sense, it seems odd that it’s available with the GM’s permission for non-Grazerties considering that it’s described as being a result of some of a genetic variance that results in some of their species having hollow horns.

Is the “with Gamemaster’s permission” an accidental copy paste, or is the idea that anyone can be sensitive to subtle vibrations and pressure changes?