Just like I'm ignoring my DTEK app now.Hmmm hold on! I wouldn't say much better! False negative will result in a threat that hasn't been identified.
Too many false positive would result in a user ignoring them, meaning that a true risk won't be identified.
Countless and countless of research had shown that... including lots of major aviation accidents caused by false positive. When an alarm sounds what too often, people will just ignore it.