As for ‘no land 3’, I presume that this is actually a change of status (system integrity / capability) for which there is no alert other than the change of annunciation. Thus an alert ‘warning’ call might be unwarranted; whereas the change of state – ‘LAND 2’ call could aid system awareness and cue remaining capability.
Yep, if "No land 3" appears (on the EICAS) the system is telling something has "broken" and you've lost a level of redundancy. If that happens to occur whilst on an ILS approach, "LAND 2" will also immediately appear (on the PFD) because of you've had a change of capability.