The midfielder, who recently returned from a 17-month injury lay-off, was shown a second yellow card in the 69th minute of the Gunners' 2-1 defeat for a challenge on Evra.
Arsenal boss Arsene Wenger said after the match that the Frenchman "made the maximum" of the situation by going down like he had been "killed" but Evra insists Dean's call was the right one.
He said: "I think he didn't look for the ball. He stood on my legs and it wasn't the first time.
"The referee did a good job and that's it. That's the rule of the game."
As well as being critical of Evra, Wenger also questioned referee Dean's choice to publicly warn Wilshere that his next misdemeanour would lead to a second yellow card shortly before the England international saw red.
Wenger said: "I thought it was very harsh. I was surprised that the referee gave him a second yellow card.
"He went for the ball and Patrice Evra made the maximum of it.
"What is unbelievable is how naive the referee can be when he says in front of the other players, 'The next foul and you are out'.
"Of course, the next foul the players dive like they have been killed. To me it looked a regular challenge."
Wenger believes it was unfair that Wilshere was sent off when former Arsenal striker Robin van Persie stayed on the pitch after a foul on Bacary Sagna.
He added: "It he sends Wilshere off he has to send Van Persie off for his earlier foul. From outside, it looked a red card."