It’s not a “limit” and it’s not a rule”. It’s a guide.
And Hondas 1500 kg limit for the auto is a towing limit, what else do you think it could be? The engine may tow higher loads but if it’s a gearbox limitation howver you look at it it’s a towing limit. How do you know the Honda ZF gearbox is the same as the Evoque. Do the cars have identical torque power curves, gear ratios, engine management software? I very much doubt they are the same apart from having the same number of ratios and a ZF manufacture.
Did you actually read and comprehend what I posted?