As typical of this forum we like to look at one parameter and ignore the others. The tow ratings are genuine but you must account for the other parameters such as frontal area, and payload as well.
Pay attention to all of the ratings not just the ones that work for you while pretending the others don't exist.
The tow rating alone does not tell the whole story.
All of the physics and factors involved cannot be expressed /quantified in one rating. As a result there are multiple ratings to consider