Though there's only been some minor tweaking done to the Kia Sorento for 2017, that isn't cause for any concern.
In fact, the undoubted rationale for maintaining the status quo is that the SUV/Crossover was already a darn fine vehicle, with lots of equipment stuffed into it, and even without a major overhaul it's still highly competitive in the crowded market niche of mid-sized utility vehicles.
This is the vehicle, after all, that drove away with the Best SUV/CUV ($35K - $60K) award after competing at the 2016 Canadian Car of the Year TestFest. It beat out the BMW X1, Ford Edge, Honda Pilot, Hyundai Tucson (conventional and Fuel Cell Electric), and the exquisite Lexus NX 200t (F SPORT) for the honours so, unless the collected auto journalists that voted on the category were collectively delusional - and I would never accuse them of that! - it's quite the vehicle.
