These kinds of issues cause a negative feeling towards the product in the user. They keep using the product even after having seen a badly auto translated review from a language they speak or all these other things, but they now have a little bit more resentment towards the product. It makes them a bit more likely, over time, to switch to a competitor. Maybe they vent to a friend a month later and the friend suggests giving Apple Maps a try.

How do the metrics you speak of capture these subtle, delayed effects?