What I like best is this method penalizes the creditor for extending too much credit. Note that the ones who are hurt most by the divide-contested-amount method are the creditors who over-estimated the debtors assets, while the creditors lending smaller amounts get a small bonus over pro-rata.
Edit: I think the (estate_size == 150) case sucks for the 200 and 300 creditors, though, because they correctly believed the estate would be worth more than 100. It is "pairwise-consistent" as the article defines it.
But perhaps game theory makes the pattern more evident, Regardless, it was a good read.