Re-playing these arguments is like trying to convert a muslim to christianity. Both sides are dug in and passionate about their beliefs. There are too many yardsticks being used and the units don't convert linearly between measuring systems.
Personally, I thought Mitchnick was fair, but it's telling that arbitrator Keller thought arbitrator Mitchnick was out-to-lunch, and that arbitrator Teplitsky thinks arbitrator Keller smokes drugs.
Here's hoping that the CIRB implements Teplitsky, finding some middle ground between the previous awards.