Even as a Freo supporter Mackenzie definitely should have been selected over Rance.
Not to say Rance wasn't deserving but it does seem Richmond's winning streak (and his great form in that time) weighted it towards Rance in the end, Mackenzie has been great for a few years now. Reminds me a bit of how McPharlin kept getting snubbed, if WC return to finals next year he'll probably get in finally.
Goals conceded is a pretty lazy way of judging it too, reckon the respective midfields and therefore number of forward entries defended against should come into play too.