many coaches have disagreed with a theory I have, the theory states over the long haul, RPI tends to move toward SOS such that rpi="sos," when taken in the context of an entire conference,
your example would be evidence of such, as overall win / loss records are not so hot
some top coaches get themselves in conference like this, and schedule themselves a cupcake non conf, then use their conf mate's SOS's to drop theirs to the 20-50 range by season's end. As long as their conf mates continue to do the heavy lifting, they get a free ride - often the conf slowly starts ALL scheduling easier, and quickly a conf can go from getting 8 in the dance to 2 or 3.