It is acceptable if the raid as a whole (majority) find it acceptable. I only yelled at my old team once, and it wasn't directed at anyone in particular it was after repeating the same thing 3 times and a wipe imminent I raised my voice saying switch the effing target. Also one of the only times they ever heard my curse, which had more weight is debatable.
If Johnny Awesome is wiping the raid and ruining everyone else time set aside for raiding, then it is really up to the other 8 if they are okay with it.