My Specialized Allez is the same way. It allows the housing a gentler curve to the cable stops and then they criss cross under the down tube. There have been several discussions on this and general concensus is that it doesn't hurt anything. It also helps keep the cables from rubbing the paint off of the head tube. I have not had any problems with mine and I really don't see how it could harm anything. The length of time it would take for them to start showing signs of wear would be so long that it would be time for replacement anyway.