Since the winter of 40-41 was comparably mild compared to 41-42 it wouldn't have had as hard an impact on the Germans.

In 1940 the KV-1 and T-34 hardly existed. A few trial vehicles existed of course, and I believe a few combat tanks as well. But not the 1000 each of 41. Thus the Germans wouldn't have had to contend with them, but would still learn the lessons when they faced the very few there were.

But I think the Soviets had a number of Armoured divisions at this time, that only got broken up late in the year. Kind of ironic that they were broken up.