If you want to roll the bones, chances are this advice will work.

Asking the airline directly (if possible) is probably the best advice. Having to discuss a bust for tactical execution or maybe the brief is pretty stupid at an airline interview - but it sounds like Delta wants that.

I disclosed my formation bust during UPT at my UAL interview and subsequent interviews. Sounds like current guidance is that UAL doesn't care.

The worst case scenario, however, is you end up across the table from another WIC graduate at an airline that does care. He knows it's practically impossible to get through that program without a bust. Better to play the game than being benched before you can get started.