I have no problem with what you are saying in games where it is clear that the map you are on is a world map. This map is not. Everything as to scale, so it makes no sense.
I will say that it could be explained in a way that it is assumed every time you open a chest or crate it takes you more time to search it than it seems, and other actions besides. For the sake of not boring players with too much reality, they don't animate out five minutes of searching a bunch of crates or whatever.