The lack of voice commands seems to be the biggest issue here, right, in terms of the fear of a "hands off" landing. Intersting that the tower can control those commands.
Technically, the rest could all be achieved by programming everything into the FMC and letting LNAV/VNAV and Approach modes sequence the plane all the way to touchdown.
I am sure many people have experienced fully-automated landings in poor weather, without ever knowing. I have been on BA
767s in Europe where the captain announced they would do an automated landing... and they were all very smooth and quite impressive.
I don't think this will jeopardize the flight crew's job. I feel good knowing there are at least two very professional people at the controls, regardless of whether or not their hands are on the wheel at all times and would not envision any carriers approving a pilotless airliner for a very long time.