Just to be clear I think it is a terrible idea. But the management line is you can save $X by putting cheap (effectively) pilot's assistants in the right hand seat. They can practice landing in the sim, which they have to do by law anyway. We will take the risk that they cannot manage an autoland in the rare case of incapacitation. The real risk of teaching them to land is eliminated (at least until they become captains).
This is very much going in the direction of O'Leary's desire for single pilot operation. Frankly if management thought they could automate us totally out of the cockpit, most of them would if it saved money. There are already plenty of SOs in big companies that are not allowed to handle the controls for landing (KLM long haul for example).