Nah. That's just coincidence. Myself and 3 members of my static did our first set of relics for our primary classes together. Since we were basically grinding dungeons nonstop, we'd swap up roles to keep things from getting a little too monotonous. The drop rate didn't seem to change at all no matter what class we were on. My last drop for that one was SV HM, which had me tearing my hair out because it took 30+ runs to drop. I went on pld, sch, blm, brd, and mnk various times because I can only tank that one so many times in a row before I facedesk.
