Introduce yourself

If Honda doesn't recommend using a wdh there is probably a good reason. I'd want to research others' experience carefully before using one. A wdh puts a very different load on the receiver and vehicle frame than does the straight vertical gravity load from the trailer tongue. It puts a significant torque (what mechanical and structural engineers call a moment) on the receiver. 

It is applying a moment that is trying to rotate the front axle of the tow vehicle down into the pavement. If the TV receiver and frame aren't designed for that you could bend the receiver and frame attachment upwards. And, the Pilot, like my Highlander are unibody construction, so a frame failure like that might be pretty pricey to fix. 

Old school pickup drivers tend to believe that only body on frame construction is acceptable for towing. Not true. Its just that unibody doesn't provide much if any advantage in a pickup because there are no C and D pillars and roof to help carry the structural loads like there are in unibody SUV's, so pickups might as well be body on frame. 

Regardless of what type of frame you have you need to stay within its design specifications. All modern vehicles are designed using finite element modelling, its not guesswork on the part of the engineers. They know what their frames can and can't do. OTOH, unibody or body on frame,  if you exceed the limitations you are effectively a test pilot. Doesn't mean you can't do it, just that you are entering unknown territory. 

One misunderstand that seems common with wdh's is that they will place the same load on both the TV's front and rear axles. If they are set up like that they are highly over tensioned.  The front axle load on the TV goes down when the trailer is attached, and this effect is greater on shorter wheelbase vehicles. The proper wdh setup returns the TV front axle load to about what it was before the trailer was attached. You will still have more load on the rear axle of the TV with the trailer than without. For that reason its important with a lighter TV to keep the load in the cargo area as light and far forward as possible. 

This towing and wdh calculator might help you get things set up and let you know where you are near or over your vehicle limits. When you change the tension in the wdh in the calculator you can see the load on the front axle and trailer axle go up as the TV rear axle load decreases.