If criminals didn't turn in the cash, then it evaporated, which is just as good. No?
For such a disruptive event, that's pathetic.
The only winner was the banking system, who saw one of their major competitors (cash), hobbled. Modi now seems to be saying that this was the point all along.
AKA, If you started with X money hidden then you don't get to keep 100% of that money if you hand it to other people to deposit.
On top of that people where caught, so actual black money disappearing was much greater than 1%.