The draw saw United slip two points behind free-scoring Manchester City at the top of the Premier League table.
"I never felt we could concede a goal and were solid defensively", he told BT Sport.
"Not that I read it a lot, but sometimes when I read the press, not only English but Portuguese, I feel that sometimes defending properly is seen as a crime but it is not".
"We are silly if we don't know what is expecting for us, unless it's a new player in the Premier League which we have only Victor, apart from that everybody knows the Premier League and knows what it means to play against newly promoted teams, is nothing new", he said.
Having netted four goals in wins over West Ham, Swansea, Everton, Burton, CSKA Moscow and Crystal Palace, United's last two games against Liverpool and Benfica made those performances look like flat-track bullying.
Injuries to midfielders Pogba, Marouane Fellaini and Michael Carrick have hampered Mourinho, but his back line has held firm.
'Phil Jones [decided] to be on the bench he was feeling that in case of real need he would help us, ' said Mourinho after the Benfica win.
The 29-year-old midfielder has settled quickly in his new surroundings and paid tribute to Mourinho, whom he feels is the ideal coach to get United back to the top.
"Now, how long you can get away with that, I don't know, but I think we're in a good place at the moment".
He said, as quoted by the Metro: "We put men around him [Benfica goalkeeper Mile Svilar] on corners so he can not come out".
But with a rock-solid rearguard he also knows United will usually be in with a chance of winning those games.