For them, there is no '𝘴ₒᵣᵣy' or '...please, I can explain...' or 'it's not what you think it is'.
Once it has already been admitted, the road already looks like it is heading to no redemption.
Like me personally, I'm just about out of forgiveness to give, it's too often that the entity in question goes and skips asking permission a second time after they apologize for the first time.
Though in this specific case, the infraction seems really so minor that I'd happily live and let live.
I agree that internet culture seems antithetical to forgiveness, and have no idea what can be done about it.
You think that "Our projects were moved to GitHub Enterprise to consolidate billing but we never had a bill in the first place." and "You're telling us we don't have copyright over our projects but the contract we signed doesn't say that." is "an accusation of insufficient prostration" ?
Also, an apology about a PR isn't this long. This is a wall of text with a few meek words inbetween.
And I agree, a “sorry my bad” type of comment would have looked nice in the PR, but the attitude and actions in it vs the official apology, sounds like completely different people.