Many people fish multiple rods. It is common practice for coarse fishing, so no, that alone does not count as unattended because the person attending them is sat either next to them, or at a short distance, and is paying attention. Such rods will have some system for indicating a bite, be it a float, swing tip, quiver tip, ring of foil on a stick or a fancy electronic buzzer. All of which require a person to monitor them and be ready to take action quickly. The fisherman is not wandering up and down the bank fishing one rod while leaving another fitted with an automatic strike/reel-in system.