Hart didn't dive for a bullet shot he never even saw let alone stood a chance of saving because he thought the ball would hit Goufran?
No, standing on the spot well-beyond diving reach of the goalie, who could not have dived to reach such a hard-struck shot anyway even if he had a big "S" on his chest, does not count as a distraction or deception.
Only had the ball hit Goufran he would have been offside. The fact it didn't and he wasn't in any way interfering with the goalkeeper means he wasn't and a goal has been chalked off.
Pelligrini should have done the sportsmanlike thing and told his players to give Newcastle a goal.
I know all this. Again, I said I was agreeing with you. My point was that in certain situations (NOT this one) you don't need to touch the ball to be deemed interfering with play.
If you're really expecting a manager to give a free goal after a decision like that then you're mental. Remember Pellegrini wouldn't have had the benefit of any replays. You're expecting him to be so 100% positive that the wrong decision had been made that he'd be willing to give the opposition a goal?
It's absurd.