It would be more agonizing to have a box car with half the graphics out of proportion and the fonts wrong, than to have a completely different railroad scheme.
If you are paying $70 for a box car that was supposed to have the graphics match the road name listed, but they are distorted and different fonts from what was used on the real cars, that would be frustrating.
A completely different railroad name with accurate graphics for a similar, but not identical box car would be less irritating if they followed the actual railroad designations and graphic styles.
Andrew