Coincidence that Barb and Wiz have same shield path?

Probably most useful case is BK and cBK. Others are Kiril and cKiril. The two types share same emblem path for all shield build. Usually you have to compromise the hero or costume but not with these classes and uniquely so.

Do you give SG credit for designing this and intentionally assigning to heroes to drive profit, or just a coincidence at the time emblems were released that they later leveraged for monies?