Yeah, it's pretty telling that comments like the one you replied to are all over this thread, and every time a response like yours is posted, no one seems to have any rebuttal. It's pretty clear that there's plenty of precedent for what this guy did and no legitimate reason to consider it a departure from what he and his coworkers had been doing for a while.
If you only read a condensed summary of what happened, you might be able to come up with a narrative that fits those high-level details that makes the firing seem reasonable. That narrative has no basis in reality though, other than being the theoretically plausible justification they came up with for firing him.