"We felt aggrieved with the first goal because Peter Thorne was in an offside position in front of Andy Warrington and he put it into the net.
"It was a poor decision and as a result we started on the wrong foot. I am not going to criticise the players too much because we have been magnificent this season."
He added "Bradford started the game well and caused us one or two problems.
"I felt that Jamie Green had a tough afternoon and that is something he will learn from. We struggled to cope with their wide men who were coming in from the touchline but I cannot complain too much because if we take our chances, then we at least come out even."
On the upside the display of Andy Warrington pleased hin no end: "He was magnificent," said Robins.
"There were a couple of chances that looked absolute certain goals and some of the saves were reminiscent of Gordon Banks. We have him to thank for keeping the score down to three but like I have said on reflection it could have been an even scoreline."