Or, phrased another way, how much money did your company lose because you weren't prepared for a common event?

What if that event cost your company less than the additional redundancy required to avoid downtime from any such outage?

What if the lost revenue from that event multiplied by its annual likelihood is less than the cost of avoiding it?

Then it sounds like a cost-benefit analysis was properly performed and the right decision was made.

If that's the case, well, then I suppose everything worked out exactly as expected/planned and there's no problem or anything to discuss.

(Yeah, I was a little snarky, sorry.)