Typically snatch ropes rely on the elastic recoil to help move the stuck vehicle. Was your snatch rope old or in poor condition. Was it a tow strap? I usually put a beach towel or hessian sack on the middle of the snatch in case it snaps/ breaks. The idea being it drops the rope to the ground and tops it flicking wildly through the air. Always use rated d shackles. Keep by standers away as snatch ropes have been reported to have inflicted injuries and death.