Yes.
Since there are no records of your exiting the country, we don't know if you've left or not. So if you are, let's say, a refugee claimant and your claim has been denied, we don't actually know if you've left the country, yes or no. For the integrity of the immigration program, it is important for us to know if you've left the country, let's say to go to the United States, so we can close the loop and know that you've left. It's the same for people who have overstayed their visa, if we would know that.
So it is to ensure the integrity of the immigration program, not to build some kind of statistics-based risk assessment tool.