I think because over the last few years we've been used to seeing Rooney behind the striker, he's been involved in games a lot more and has seen a lot more of the ball.
The way Van Gaal likes his strikers to play means Rooney will see a lot less of the ball, and because of that, people will automatically say he hasn't done anything, but to me, he played like any other striker would play up top on their own and did what he had to do. When the ball came to him, he held it up, linked up well, he pressed and ran in behind, although no one, other than Bastian in the 63rd minute, found him, which resulted in a shot on goal by Young.
I think in order to get the best out of Rooney, and I've said it before, is to get wingers, who are willing to keep the width and run in behind. At the moment, with Mata on the wing, when he cuts in, which is often, he closes the space for both, Rooney and Memphis. Rooney is also a player who is great inside the box, and strives off crosses from wide, but we didn't get in nowhere near enough the other day. The crosses I can remember is the one which resulted in an own goal and Rooney's attempt of a bicycle kick.