Quote:

" where the norm was large Soviet losses regardless of what German panzer unit was fighting"

The 'norm' on The Eastern Front was large German losses. The bulk of the German panzers were smashed here and in terms of numbers there is simply no comparison between the two fronts.
Whilst we may read of the mythical 20+ Russian tanks destroyed by every panzer the figures for tanks produced show that this ratio was physicaly impossible.
The Russians took a little time coming to terms with the new style of warfare but they soon mastered it and tore the heart out of the German Army. No one country won the war on its own but the Soviet Union can claim to have done the most.