"Being professional" is not about all agreeing to the same ideology, but consistent standards of behavior are the core of professionalism. If we cannot agree that screaming "SHUT THE FUCK UP!" and calling people brain-damaged and "worthless piece[s] of shit" (as Linus has done elsewhere; the specific example in the OP isn't as bad) is inconsonant with professionalism, the concept has lost all meaning. There are ways to express disagreement or that someone's actions are wrong without namecalling, screaming, profanity (which is not always problematic in many environments, but can get off the rails) or dressing them down publicly.
Linus isn't a drill sergeant and his poor imitation thereof when he power trips doesn't get his point across any better than just saying "X was a bad decision, don't do it again for reasons Y and Z".
Linus isn't a drill sergeant and his poor imitation thereof when he power trips doesn't get his point across any better than just saying "X was a bad decision, don't do it again for reasons Y and Z".