Regardless, this is a made up story.
If author cared about code and processes he'd not be working in an environment that doesn't.
On top of that, it's never a good policy to wash laundry in public.
Thus imho this story is made up and this never happened.
I can tell you for a fact this exact behavior, aggressive manager included, exists at my company.
Thankfully they're in a different org/reporting line, but this exists in the real world.