Mehmet should have scored the open goal (obviously) and done far better then when Langfield batted the ball put to him from the save, which would have meant we would have been two down without having anything on target by that point. We had lots of the ball but were not really able to create anything for our strikers with it. I thought we were the better team, but not by a great margin - so its not implausible for someone to think the other way as per Mr commentator.
As for Miller, he was looking to be fouled rather than looking to have a shot. Does his foot slip? Did he think he felt contact? It doesn't matter, as he threw himself to the ground rather than trying to score his first goal of the season.