Looking for an Argus Heroic kill

And that's a lock here. There was really no need to jump on someone trying to help their partner out.

OP as others have mentioned there's various groups around such as Fail Train, Perky Pugs and Friendship Birb that are all helping people get the Violet Spellwing mount before it goes away. I'd recommend looking into one of those options. :)

Also keep an eye on the Battle.net Desktop App as we sometimes promote streamers on there who are helping players get rewards such as the Violet Spellwing etc.