Jesus wept is there no limit to your bellend statements ? It was a seismic event for this country which helped to shape social attitudes after the war, and had an unprecedented effect on the lives of the civil population during it.
It counted for plenty considering the numerical and logistical advantages which the allies had in all the theatres you have mentioned, it also wasn't what you said , you specifically stated that aside from the tactics of blitzkrieg that 'there wasn't anything special about the German army' ...
They were very well trained, very well equipped, very well led, right from junior officer to general staff level, and for the most part extremely well motivated.