I think the no towing is due to the requirements for testing that the DOT demands of manufacturers. With a limited run of vehicles, it would not be worth the cost. Mechanically, the tranny is the same as the 3.5L trooper, which once again, comes with a classII 5500lb hitch. That means at a drivetrain level, it (tranny) is designed to tow. I agree neglect and abuse can contribute to issues. My truck gets worked hard, but I meticulously maintain the old girl. Premium fluids and routine maintenance. I am on my 3rd set of wheel bearings and so on. I pay to play so to speak. Right now I am DDing 70 miles a day in the old girl. Not fun, those kevlars get louder every trip!
I love my VX,(obviously) short of a fire, flood or major collision, she isn't going anywhere!