There is nothing to be concerned about with regards to the “requirement” to autoland. The systems are set up so that you will always see LAND 3 and FLARE/ROLLOUT armed on the PFD assuming the requirements are met. . There is no requirement to autoland though, the plane is just telling you that it CAN should you desire it. Also of note, if you disengage the autopilot above 1500 feet you won’t have the LAND 3 annunciator.