Dodgy penalty, watt getting in the way of kaleta goal attempt and deflected goal. I think at this point we realised it was not going to be our day. You need luck to beat them, and with the official being card happy towards our players, it's no wonder heads and effort went down.
I think it's very harsh to have a go at the team under the circumstances.
Looking at football in general, unless your an elite team, and even then, there are very few teams who constantly get clean sheets. Sure we have what 1 in 100 games or what ever, but even teams of our standard are hardly that much better than say 4 or 5 in 100. I personally don't care about clean sheets as long as we outscore the opposition.
Outwith Celtic, don't think there is many clubs where their fans are totally behind the manager and their tactical approach to the game. Money, technolegy and negative coaching, ie where are the flair players? has given us a modern game which is as someone said is like a boring chess game.