Three days is quite a long time to be late, so I'd hope someone over there is getting a reprimand, but yeah, it's also not a disaster. They're response and time to remedy this will be more telling I think.
Three days over a weekend, though. Context matters. Even if it's the most critical incident, you can't force employees to work outside of business hours.
That makes no difference as to when the three days where. I never made any claims as to why it's late or them lying. I merely clarified that the three days were over a period where people don't usually work.
'Lie' is indeed a strong term, informally suggesting an intent to deceive. Personally, I would suspect negligence and incompetence rather than deceit, but negligence is a serious matter here.