Yeah, I generally agree with you. Mostly just exploring thoughts here, the gp comment prompted a kinda unexpected re-examining of my hitherto un-examined ideas on the ethical basis of the advice in the post.
I'd generally consider myself something of a utilitarian/consequentialist, and would normally accept the premise that apologizing in front of the Twitter mob would at best do nothing positive, but for whatever reason my brain wants me to say "apologizing is right, and consequences be damned"