Simplistic response, there is no doubt that the 76th has had its combat capability degraded through loss of equipment and trained personnel being reconstituted with mobiks and conscripts
To say they are one of the best left and still severely degraded are not mutually exclusive ideas.
I can tell with certainty that the group that participated in the initial assault on Hostomel airport has suffered less than 10% casualties. And I am not talking about the original assault, I mean by this day.