RE: Rough & tough ride commercials
The Murano was not intended to be an offroader. Hence, a comparison with an Exploder, Blazer, VUE, Hummer, or any other offroader would be like comparing the towing capabilities of a Q45 and a Ram 1500.
The AWD feature is intended to help out on slick roads. In fact, if you read up on the CVT, you'll find that sudden torque changes, such as "brake-loading" in order to get an impressive peel-out, or using the tranny alone to change directions (say, backing up and, without stopping, dropping into Drive and taking off) has been the number one killer of CVTs over the decades.
The sudden changes in torque requirements that are inherent in offroading would, therefore, reinforce that the MO is not intended for offroading.
I've had two Blazers, still have the Ram, and have driven several F150s, Tahoes, and even the Benz SUV and a couple of Hummers (the big'un and the H2). They are different beasts from the MO. No comparison would be reasonable.