It seems like its a brutal nickname. The "Gore" zone seems to refer to the area after the emergency-cushion is damaged.
Normally, that area has a barrier designed to save lives, by slowing down cars and providing cushioning. However, the emergency-cushion was already damaged from a prior crash.
Without an emergency-cushion, running into a straight concrete barrier has known, lethal consequences.
Here’s another question: why wasn’t the ‘gore’ zone detected?
Why did the car thing it was safe to drive over and area with striped white lines covering the pavement?
It saw the white line on the side of that area and decided that was a land market but ignored the striped area you’re not supposed to drive on?
If you’re reading the lines on the pavement you have to try to look at all of them.
I don’t know if other cars, like those with MobileEye systems, do that but given Tesla’s safety claims they’d better be trying.