Because of the Honda Pilot's independent rear suspension set up, there is a little you can do to compensate for rear-end sag. You can buy aftermarket kits, like those sold here:
https://flatoutsuspension.net/1622pilot-grlite/. But then you're changing the ride for everyday driving. But, to my knowledge, you can't simply add airbags. On the flip side, the independent rear suspension gives a pretty good ride for a three-row SUV.
We have a 2016 Pilot AWD. Although it is rated to tow 5,000 lbs. provided it has the transmission cooler, it is pushing it to approach that number.
Full disclosure, I have not towed with our pilot. At one point, we were considering downsizing our boat (we had a 208 for ten years) to something we could tow long distances. I talked to a lot of people, mostly towing campers. Their biggest complaint was rear-end sag. But it wasn't all complaints. Most were overall very happy with their Pilots.
But, if you're truly going 1 mile, four times a year, it can handle it. Even then, I would recommend changing the differential fluid at what Honda refers to as 'extreme use' intervals. I've read that Honda's AWD differentials really do require adhering to a strict interpretation of the owner's manual.
We pulled our 208 with an old and tired Chevy Blazer that had less torque, hp and stopping power than the Pilot. We went to the Keys in the heat of summer a couple of times a year. The Blazer complained a lot, but always made it there- and back.
The Honda 6 cyl. engine is great. Decent power for passing. But also has cylinder deactivation that works well. Taking it easy on the highway it can get better than 30 mpg at around a steady 60-65 mph if you choose to.
The second and third row seats fold flat. And if you don't mind a stand-up paddle board as your right arm rest, we have slid that in there a few times as well.
Rob