Ten Hag said: "I can always have complaints but we are pleased with the result and the performance. We deserved this. We wanted to send this message to crowd but this is also our style. In the first 30 minutes we did it perfectly on the pitch.
"It was unnecessary to concede that goal. We switched off. We have steps to make. We are going in the right direction. This team will be good and this project will be good.
"I don't care about the noise. They are used to it. It was the same at Ajax but in a smaller country so less people.
"When you are not on top form on the day, you get beaten. You need to be at your best. When you are not, you get killed. We know that and we need the right attitude every game."
On McTominay, he added: "He did great. he had an important role to play. He is a very good player. He stopped Chelsea with Antony. In possession he was very dynamic. He scored two and could have had more."