The success caused the loss of 10.000 stagglers, who would have needed more time to cross, something that would have been possible if the russian armies had been beaten, not merely repulsed.
To cross the Berezina in the middle of three converging russian armies was a performance, which avoided a final defeat (or not - Napoleon could have escape with an handful of horsemen, and the 1813 campaign would have been nearly the same).
But still, the battle did not change the course of the campaign, and caused heavier losses to retreating french than to chasing russian armies.
A kind of Dunkirk 1940. Is it considered a victory on the other side of the Channel ?