I think that pro-rata distribution based on activity rather than minimum distribution based on rank would have been a more fair distribution. I don't think that Theymos was trying to be unfair, but I don't know how easy it would be to implement a pro-rata distribution to even out some of the seeming merit distribution imbalances.
There are many ways to have a proportional division.
for example on the site there is total time logged in:
or Date Registered:
can be included here Activity:
and combine different options ...