The result leaves the Germans, Arsenal and Napoli level on six points at the halfway mark of the group stages, and Wilshere admits that Pool F is interestingly poised with three games remaining.
He told Sky Sports News: "They are a good team. They came here and they showed that.
"They moved the ball around well, they are difficult to break down, but we had our chances - Santi [Cazorla] hit the bar and we had a few more. They hit us on the break and they nicked a goal, but it was a good goal and we'll bounce back."
"Napoli won tonight, which makes it even more interesting. We're all on six heading into the last three games, so it's all to play for and we know what we have to do now."
Arsenal travel to Selhurst Park to face Premier League strugglers Crystal Palace in their next outing.