My parents also had a 2014 Forrestor. They parked it next to my shed when they went on a cruise one winter, and it crawled itself out of a 2 foot snowbank without shovelling it when they got back. That thing was a tank in snow and I definitely abused it when I had the chance.

For the 'tire spinning in the air', sounds like the other tires must have been spinning too so there wasn't anywhere to transfer the power to, but I'm only guessing.