ATV's were created for all-terrain. Sometimes they get through stuff you would' believe. Getting stuck is always a possibility. I remember many years ago having to use a 4wd with a wench to get into a dark, muddy forest to get a young family member out of his predicament. It happens.
We have issues here with people destroying private property from sneaking in with them looking for water and mud to ride through. There is even a popular hangout that a landowner has turned into a moneymaker for himself. He charges a fee just like an amusement park. I guess its fine if they keep them off private property. I see the photos on fb all the time and they are riding through the a local creek.
In this case who knows? If the person knows the woods well and has path in mind (maybe they planned this in advance ) they might avoid the pitfalls. Now, if there is a makeshift trail through those woods or a dirt track road, the odds go way up for someone to use that mode of transportation. Most ATV's that I'm familiar with also have a rack on the back where a passenger could be put. I am still working through in my head how you would restrain a person in that case, though.