Honestly how bad could it have been though. Tbh most people don't even notice color palettes in presentations, they just look at the numbers and bullet points. Ngl it sounds like a last minute excuse for something else that went wrong. I've seen way bigger presentation disasters that turned out fine.
Oh jakewhite, have you ever seen a color palette so bad it makes the numbers look wrong? I bet the real disaster was watching someone try to explain it.