I always laugh at these comments and mostly blame the marketing...
Has anyone actually tried to use a farm jack to rescue a rig? Let me tell you, it's completely exhausting and frustrating. I did it once to help rescue a rig (there was no good way to get a proper winch line run without risk of the rescue rig getting stuck). It took probably >2 dozen resets on a 60" jack to get to the point where we could finally run the winch line to. By the end, I was beat and plain exhausted. Mind you now, this was in college - back when I played D1 football and was running sub 7-minute miles (as a 6'3", 315lb d-lineman). There is no f*$#(@$ way in hell I'd ever consider this a viable benefit nowadays... I'd rather gather supplies, make shelter, and become feral before winching my ass out with a farm jack