"We didn't deserve a 4-1 loss," he told the official website.
"I was much happier at the performance and that we pushed a team from the top of the Championship into extra time on their own ground.
"While their second goal was taken well, if you look at the position of the referee, he actually gets in the way of Lee Roche to stop him making a block on McSheffrey's effort.
"As for their third, I want to see that again on the video, because even from our position it looked offside. You could also tell from the reaction of the players that they were extremely unhappy not to see the flag raised.
"After that they caught us again chasing the game, which gives a result that did us little justice.