My dealer does a mini rewire on every RE, Vespa, Genuine Stella, and Buddy scooter that goes out the door. They're under warranty and you're going to fix it anyway, may as well do it while the bike is fresh and new and before you have to go pick your customer up on the side of the road.
I don't think all dealers do this kind of preventative prep but more should. Many bikes have poorly routed wiring and hoses.
Oh, they also put a little plastic guard on the edge of the C5/B5 battery box where the edge passes (and often rubs) the fuel line.
Scott