Thats why chevy's make such poor tow vehicles!
Trailer sway in an 80km/hr zone, ouch, talk about the tail wagging the dog. I'm no towing expert, but if one gets sway that slow, there are other issues at hand.
At least the jeep stayed put on the trailer, cause if it got launched forwards or into the oncoming lanes, wow, that would have gotten real ugly, real fast.
Thankfully no one was hurt.