Yeah ok.
In my head I still think that a 225 on a 7in rim will have the same contact area as a 225 on a 8in rim when the car is standing still.
Even comparing a 205 to a 225 on the same rim, they have almost the same rolling radius and circumference so there is not much change in front to back contact patch. Maybe this small amount is what they are refering to.
Ahh who cares. Wider tyres are better almost all the time. haha...