Define "Exposed"
Do you mean wire ends that are stripped of insulation and left hanging, twisted into a connection, or attached to a terminal?Or, do you mean insulated wiring that isn't wrapped with a chafe protection or run through conduit?I recall seeing some posts on the Catalina 320 Intl. website regarding wiring with exposed splices behind some paneling. I never found any in my C320 (yet). So, it is possible that practice could be going on at the factory -- I suspect to cut costs and utilize the wire ends on the spools rather than throwing them away. I hope the wires at least had tinned conductors. Bare copper conductors will quickly corrode in a damp, salty atmosphere.An in-line splice without some sort of crimped connector and chafe/corrosion protection is not a good practice. That said, unless it is near metal or an exposeed wiring panel, etc. it probably will not cause a short circuit. The danger & inconvenience is from the exposed splice corroding and/or separating. --RonD