Care to elaborate, and by the way, how do you know this is correct?
There was a PDF article on the subject. They were talking about ADL (allowable damage limits) for both aluminium and carbon fibre fuselage aircraft in typical airport ground operations, carbon fibre is much stronger and will absorb significant hit by a ground vehicle before reaching the ADL while the same collision will necessitate pulling aluminium aircraft from service and repair. Such ground collisions are more frequent than people think, airlines lose a (~) billion $$ every year, anyway there was an exact figure and it was pretty staggering.