Your comment conflates two different actions. There is a landmark application pending for 16 Grant Circle NW. Separately there is a landmark application pending for the creation of the Grant Circle Historic District, which would also include 16 Grant Circle NW, and for which the map is relevant.
Arguably, the building at 16 Grant Circle NW does not meet the criteria standards by which a building would likely meet to be considered truly "landmark-worthy." Hence the recommendation by the HPO staff report to not designate the building.