Except they do get the intended information. The label doesn’t exist in a vacuum; the user would have seen other examples showing the specificity at intervals other than “last week” which sensitizes them to the cutoff points.

This is literally a non-problem. If a library behaved in the way the parent commenter makes them seem like, then, sure, they have a point. But they don’t. Something that occurred a second ago would say “a second ago”. Something that occurred 5 minutes and 43 seconds ago would say “6 minutes ago”, etc. There is no library in the world which takes a timestamp a second ago and outputs “a week ago” and pretending like there is is, literally, a strawman.