IMO whenever I have led something, I share the credits and take full responsibility of the failures. I say the same thing to my kids, be it their hockey game or drama team. If someone else screwed up in the team, they mostly know it and I don't need to point it out publicly. I do it privately. Its their choice if they want to own up publicly.

Again IMO Nikki's was right to gloss it over and doing so kept focus on the main theme.