The Cherries won 1-0 thanks to an early winner from Marcus Tavernier. Wolves also had Toti sent off in the second-half.
Iraola said afterwards: “I think it was, I wouldn't say a must win for us because it's the first game of the season at home, but it was important for us to win the first game because now also we have difficult games, so it gives us some confidence.
“Also the clean sheet and game wise, I like more the first half than the second half. But even without playing well the second half, I think we haven't conceded basically any chance the second half. So let's take the positives.”
Asked about the goal, Iraola said: “I don't care who scores, but it's good that he had one goal there. I think it's important.
“I think we started really strong the game.
“First 30 minutes, I loved how we started with intensity, recovering the balls very high, attacking well the spaces, and we scored one.
“We had especially Antoine has had a big, big chance, hit the crossbar, but I think we were doing what we wanted.”