So yes, very low altitude flight will naturally occur in the zone where the plane crashed (or where the alert would be triggered), but not in that combination of vertical speed and heading. The system can easily detect that with the current trend I will end up touching a couple miles past the runway threshold that would be consistent with the heading. Even more, I know that there is a "long landing" alert in some planes, but I don't know if it is part of the EGPWS.
I would expect it to do. If you say "too far past the TDZ" then it sounds mild. But we can also say "aiming to a point that is nowhere close to a valid TDZ".Anyway, in this case the warnings would have needed to occur over the runway. I highly doubt EGPWS gives altitude alerts because you are too far past the TDZ. That would be cool if it did though.