You would hear plenty of whining from the opposition. Its supposed to be used for clear and obvious errors, that was not clear and obvious so it is not working perfectly unless it is now going to be a case of we review every incident in the penalty area.
When the people in the studio say they had to see it 20 times before agreeing it doesnt seem so clear and nobody seems to be taking into account that Tarkowski didnt deviate his run the italian did and he had lost posession of the ball before he trod on his foot.