It actually wasn't a good thing and would make for a horrible dataset. Farming the drops outside of Bozja could get you all 60 easily in an evening of farming with the remaining 6 done in an hour or so, while in Bozja, even at rank 15, it would take days to get the same amount of drops. Now if they dropped at the same rate it would be a fair comparison, but since they drop at alarmingly different rates, with Bozja being an immensely extensive grind by comparison, any comparison would be so flawed it would be worthless.
I think Bozja would have seen a lot more completion if they would have just made the drop rate the same both inside and outside, for all the various memories. Then they could use that data for future content.