J70, are you really going here?
There shouldn't be a "quota", just a dollop of common sense.
The best player in any given position could of course be a MacLarnon player. But the fact is that over the course of a season, someone playing "A" grade football will come up against a greater number of quality opponents than someone playing "B" grade football. This is a fact.
So, standing out at the "A" grade is a bigger challenge, and anyone who does it regularly, deserves to be recognised as in the running for an award.
To balance this up, just so as we are comparing apples with apples, then I'd suggest that the best players at "B" grade should have to dominate games every single week to be considered on the same pedestal.
If you can't agree with that, then let's leave it there.
If you can agree with it, well you're the one with the scientific background. How much of an anomaly would it be that there is a greater number of continually outstanding performers at a lower level, than regularly outstanding performers at a higher level?