You have 42 defense. Chances are jagex won't give you something you can't wield. Rewards get better with higher levels. Or maybe you got unlucky. I saw divine on 2 of my rolls yesterday. I was on my low level f2p account and I had the chance at tassets + armadyl chestplate.
Duo tri-brid with blueice. I got a warrior early too, but dropped it for blueice to hold. Got warrior, zerker, steel kite, warrior in a row from rex :)