I like it whenever someone makes a prediction for a game when they haven't seen the opposition.
I've seen numerous games with FCK, and 4-0 is a fair prediction when you're taking their form and quality vs. ours into consideration. There are several factors, like tactics and the home crowd (might be as many Juve-supporters as singing home-supporters though), that when added to the equation could point in a direction of a lesser difference on the scoreboard.
I think there is no doubt about us dominating this game, but the questions needing to be answered will be "can we convert our dominance into clear chances", "will we be clinical in front of goal", "will we allow the opposition easy chances during the game, on the counter or via set pieces?". And well, it's not granted at all that we will win by a large margin, and i could even see the game end in a draw, if we are unlucky and doesn't show up. They will be motivated and give us a hard time creating chances, but if we get an early goal or just manage to bang in the ball when we get our chances (which we will, maybe not in huge numbers, but we will get some), then 4-0 could be achieved. It's no guarantee, but we should be able to kill this game fairly easy, if we go out and give em hell.
As for your statement in general, i agree totally, and it's pretty lame when people expect us to beat the likes of Catania 3-0 away without even trying, just to take an example. Off course we are the favourites, but it's not just that simple
