How is it that the 22 Sport weighs less than the 19 flying cloud?
The 22 sport is narrower than the 19s and 20s, and has been purposefully designed to be lighter (due to price point or engineering, depending on your viewpoint).
Flying cloud has wood front uppers on the cabinets/Sport has rolling tambour doors.
Flying could has more drawers/Sport has only 1 drawer.
Flying cloud has different sinks and stove and ovens than Sport
Flying cloud has different windows that are likely heavier.
Table dinettes are different.
That being said. I drove a Honda Pilot for 10 years and it is a great product. But once we decided that we would buy a 22 sport and not a 16, we bought a Toyota Tundra. With the Pilot there is just no way to be able to have that extra power --merging, passing, avoiding incidents-- that to me equal a safety level that I desire. And we tow at 60 Mph with our Tundra. Safety is important.
Could you tow with a Pilot for very short hop weekend trips on 2 lane flat roads? Yes.
I would not want to be on busy interstate highway traffic or in the mountains, or even on a constant uphill grade like driving west across KS or NE with one while towing a 22.