c.i., an article from the link you provided goes somewhat to the matter, and draws a conclusion congruent with my earlier remarks.
http://2ndww.tripod.com/Kursk/myth.htm
" ... Germany's defeat was already certain in June of 1944. The Nazis had been beaten by the Soviet Union in a ferocious clash in the east that dwarfed all other fighting, not only in sheer numbers, but in viciousness, loss, and misery. Yet we in the West continue to parade the myth - if only by not telling the full story - that we defeated Nazism.
The West helped mightily, to be sure, but the lion's share of the victory belongs to the Russians and other nationalities of the old U.S.S.R. For them, there was bitter irony in Saving Private Ryan: The evening the film was released and celebrated across North America was the 55th anniversary of the last day of the battle of Kursk.
Kursk, not Normandy, was where the Nazis' fate was sealed. It was there, in the summer of 1943, that Germany made its last great offensive drive, igniting a titanic tank battle. The Soviets won, and followed the victory with great offensives all over the front. By the fall of 1943, 60 per cent of the ground occupied by the Germans had been retaken and the Soviets had unequivocal superiority on land and in the air. German offensive power had largely been destroyed and only retreat and surrender lay in their future ...
... The scale of the war in the east defies description. At its peak, the Red Army had 12 million men in uniform. It faced the vast majority of Germany's armed forces - 70 per cent in June 1944. At times, the front line stretched over 1,500 miles ... "
At the end of The War in Europe, The Allies had roughly 3.75-4 Million men on the ground. The Soviets had over 12 million in place ... with nearly 4 million of them IN GERMANY PROPER! The Soviets, apart from their manpower superiority, had overwhelming advantages in Armor, Artillery, Tactical Air Assetts (Though The Allies were far better off as to Strategic Air Assetts), and were operating at the end of logistic lines that were secure, landbound, and largely Rail. The Allies much smaller continginent was supplied muchly by Ocean Convoy, with incredible snarls and chaos at the Allied-Built Temporary Ports and Allied "Restored" Port Cities on The Continent. Of critical difficulty to the Allies was Petroleum; Almost all of it was refined in America, Tanker Shipped to Britain, from where most of it arrived by specially laid Cross-Channel Pipeline to a hastily built facility near Normandy, and was primarily truck-transported from the Continental terminus to the fighting units. The Soviets had no such difficulties ... their units were supplied with a constant stream of Petrol Trains directly from the Oil Field of The Caucasus and from captured Romanian Fields.
timber