I do not know if it is a bug or oversight, but I have seen multiple times the triangle in remote view on an area of the map that is undiscovered. (pitch black in remote view.)
I do not know how the mod functions however I believe that the player should only get alerts for areas that the radar has scanned and found new biter nests in. (a.k.a. the same way you would discover a new nest by being in remote view and suddenly seeing new red dots pop up.)
The gist of what I'm saying is that the mod should only provide information that the player already has access to even without the mod, should he have the patience or determination to closely watch the remote view for new red blips.
Kind regards, Alin.