In this incident, Airbus doesn't display the ILS for some types of approach by default, extra steps need to be taken, and they weren't. Not mandatory to have it displayed for the approach they were flying, but it would have given additional cues earlier that there was a problem.
I'm not sure about that. The centreline is only joined at 3.6nm from the threshold; even if they had had the ILS tuned up, it would have been indicating fly left until then, and could therefore have been disregarded, given it would have been displaying garbage for the approach until the F101D waypoint...