Figured I would check back in and add a bit.
Im not sure about the new Escapes, but my 05 does allow for a bit of wheel spin, but most importantly when it picks wheels off the ground it wont immobilize itself. One of the places I go shooting a lot is at the end of a 2 track (old logging skidder trail), its about a 12% grade in spots, always washed out and has lots of exposed rocks. It is literally impassible 5 months out of the year here (went up there once after a hard rain in my TJ that was locked front and rear, on 31s and a buddy had his 350 powered 4runner, sold axles, locked front and rear, and on 36s, both of us almost died, lol). Anyway during the summer you still need 4wheel or a rear locker because of the dips and wash outs. My 05 simply crawled up it, with minimal drama. I could tell a few times due to how the Escape felt and all the body creaking that it was on two wheels (opposite corners due to lack of articulation), it just kept going. For what its worth I have also run up this hill with buddies in 2 other cars (both Honda Ridgelines), all of us loaded with 4 people and gear in each rig, honestly about 1K lbs in each rig. The Ridgelines did it but the guys had to gas it quite a few places and use momentum to get through. They both also over heated and they had to shut off the A/C. Meanwhile I was just crawling along, with my A/C on. All three rigs have V6s and tow packages (what ever that means on a Ridgeline, lol), so I felt it was a good comparison.