collecting the opinion of various people over time about kage and gnw treasure (they work in the same way) i can tell you that yes, is possible to get a super rare even if you do not get all the other rares in the treasure, but seems that whoever falls in this category never gets his super rare before the 1200th draw.

Every player that got it in the 950-1150 range had gained all the common rares before the super rare pull.