I wonder if this means that there is a greater concern over stealth aircraft flying into US airspace, hence the need for greater sensitivity at the cost of losing precision and/or specificity.
I suspect that when the Commander-in-Chief starts asking why things aren't being detected sooner than after penetrating the coastline, then any previous filtering for "quality", as in meeting certain velocity parameters, whether being not too slow, or not "too fast" - i.e. a momentary reflection in two spots now gets interpreted as a high velocity paint instead of the previous two indeterminate and fleeting radar returns that would have been ignored - well, that filter gets turned way down and we end up chasing a lot of ghosts.
Additionally it explains why a balloon made it as far as it did. Extra work, but we're on alert.