I assume this is because it results in more chromatic aberration than with film?

I suppose the difference from film is that unless you've got a very expensive CCD, it's much smaller than a 35mm frame, so the fringes from chromatic aberration are going to be correspondingly magnified in the final image. (Whereas with the old Mavica this didn't matter much because the resolution was low enough that the pixels were still fairly physically large.)