Would such a formation even be legal..?  That same phrase is in the definition of a lineman...  (2-30-9)  If the snapper isn't facing the opponent's goal line, then he isn't a lineman...  At the same time, he isn't a back...  Therefore, you have an illegal formation on A...  (7-2-3)
I think this is a "clarification", but perhaps it's not all that clear what they were clarifying...  
