Another thing people need to consider, is the locking of servers is stopping the flow of Gil spammers creating new Spammer bots. That is why they have started resorting to hacking accounts, because they can't get in the game otherwise.

Is it a perfect method? No. But until they can fix the problem with a more permanent solution
This is what they have at their disposal.

On top of what they mentioned before, with over congestion on servers.