IBD did not call the 21st a FTD. It was close and the central argument is whether the action on 6/16 qualified for a day-1 rally attempt or not. IBD chose to not define it that way as the day did not close high enough in the range. Scott O'Neil, (Bill's son) called it a FTD however so you can see it was close.
If one wanted to define it as a FTD it is okay, just keep close to the exits.