The former Porto boss, who had not lost a league match as manager for 17 months prior to Sunday, said: "I am surprised that people take the view to criticise us for being naive and stupid at Old Trafford.
"What we did was defend the essence of British football and football well played.
"I find it strange that people related to football don't know where to position themselves regarding what is best for football and what is best for fans, because fans are the most important part of our game.
"It was an entertaining game for the world. Pity we didn't come away with the three points but I think we were superior during the 90 minutes.
"In the end, it's the victory that counts. We missed the victory.
"We are five points behind the leader and we have to try to shorten the distance as we try to progress with a couple of wins."