Yes, good point.

First time trying to import, I uploaded the file to the wrong directory, and so of course I finished the process and had no new entries.

But, I also had an "All data imported successfully!" message on my screen, which caused a couple minutes' confusion. A warning along the lines of "no new entries created" would have been helpful, I think.

Or else a blurb in the documentation, to let us poor neophytes know that, if all goes as it should, we'll get a confirmation line on each imported entry.