Personally, I think that while they are preparing X-Bank for the official release, the airdrop rounds did not need to be stopped. Would conduct airdrop under the old scheme until full readiness of X-Bank. And if they are so afraid of multi-accounts, then with such a scheme it would be an additional incentive to speed up the issue of X-Bank
They arent afraid, multi-accs just waste their precious time. An extra pain in the butt, to go trough database manually.