I presume by “jack knife” they meant the back end came around. It is a rear wheel drive car.
We always called that “swap ends”.
Hard to see how the term ‘jack knife’ occurred to anyone.
I think from watching the video that “jackknife” means the driver lost control and hit the palm tree on the side causing the car to fold up like a knife.
Spinning out via oversteer and jack knifing are two completely different things when discussing vehicle dynamics and crashes.
A car DOES NOT jackknife unless it is towing a trailer, in which case the combination can.