Yeah, I was like hyper-focused when I first played the final level and as I went for the close kill, the surgeon's sickly sunken eyes and dark complexion burned into my visual memory. My first thought when Abby's dad was revealed as the surgeon was "hold up, that's not the guy". I checked online, some modder had removed his mask and he was indeed a black man. He looked malnourished, especially compared to part II Jerry's round face.
It didn't ruin the story for me or anything, but I think it's funny cause I'm 99% sure they did it by accident.