Cause i dont think so, did back to back, both times oryx dropped two exotics, and arms. He seems to drop the same items for each character (both titans) each week. Also i havent got one primary or helmet in the 6 times or more ive beaten him. Im thinking its not rng at this point and bungie has put an algorithm to limit gear by repeating drops for each character. Last week was sniper fest (i have four harrowed snipers) and the week before that, class items ( i have four of those also)