I can see how one might think this, but...
The Russians have lost a lot of prestige and so many young men, armaments and supplies... The real death toll will be staggering. That is due to the method of modern war...
I think that will inevitably give them pause. Even though they beat Finland in 1940, they certainly still don’t relish fighting the Finns.
“I think that will inevitably give them pause.”
Maybe, but they may be suffering a form of the “sunk cost fallacy” too.