Well the media (sports.ru) is quite reputable. Also, during the initial penalty, he angrily shouted the same "what the f**k was that"? This can be clearly heard on the video (unlike his dialogue with the referee before the second penalty that I was referring to previously).
Once again, not saying he has issues.
Not saying, that even if he has, this will make any GM ignore him.
Just saying, that he definitely had a meltdown with swearing and yelling at a referee which costed them two goals. And russian media picked up on it, with the consensus in the (russian) comments being that he already thinks he is a star, without achieving anything yet. Russians really don't like rude and spoiled children.