I have frequently wondered that too, all I could come up with is that the typical SPL dross are just spoilers and good at it, prevent any football breaking out. These Euro teams don't do that, it's not like trying to break down the brick wall we might see in the SPL.
As for the result I think I was as relieved as I was happy about it, definitely didn't foresee such a relatively commanding performance given the patchiness of late. If Dessers could just start putting away at least some of the gilt edged chances he gets that might help immensely. Making knockout stage could conceivably come down to GD.