I woke up (went to bed when the 12 am maintenance started), turned on the computer, started up FXIV, clicked "start", and hit the 1017 before I even got a character list (meaning I couldn't even play on a JPN server because it kicked me back to start before giving any of the options).
So, no, it's not DDoS logic. If it were, SE's just making the problem worse: if they queue'd people instead of forcing these repeated attempts to get in, the servers would be under less load.