If I was a Bayern fan, after Wednesday's shocking performance I'd be seriously annoyed at the lack of professionalism to allow a weaker team a sniff of going through and I'd be worried about my teams chances.
Let's not beat around the bush, Bayern were awful and lacked motivation, they thought the tie was won and all they had to do was turn up. The difference with the victory in the 1st leg was that it wasn't unpexpected, we're a fairly average team with a real lack of quality (it shouldn't be the case but is) and it would have been no surprise to see a team like Bayern win at a canter with the players they have.
It's is a surprise to see us win without really going for it however, as they're a far superior team. It was a timid affair where one team defended and the other team was disinterested, we didn't really go all out snap at their heels and unsettle them, we just defended and because they lacked motivation we snatched a couple of goals from rare attacks and won....it wasn't really a heroic gunghoe effort.