Some contexts work better with structured navigation. One that comes up off the top of my head is the electronic trial master file in FDA submissions. Because

Some contexts work better with structured navigation. One that comes up off the top of my head is the electronic trial master file in FDA submissions. Because it has a standard structure, users can navigate it faster through the structured navigation than through a freeform search. I think other contexts this might hold true are when the content is browse oriented (how often do you use search on HN or reddit?) or it's a mobile context where a structured nav would allow less tapping than typing a search query.