You're missing the point.
When you're analyzing a market or demographic segment, you can't make a sales pitch for a particular company or product. You don't care about the individual products. It's a bigger question about how the groups, classes, or properties interact and the outcomes of that interaction.
In this particular case, I have questions about the "larger employment". Is it domestic or foreign employment, and how do those jobs compare to the median wages locally?
If that employment is larger domestically and offering equivalent wages, then the native-immigrant is objectively improving the economy of the host country. On the other hand, if the employment is largely foreign or offers subpar compensation, then there is little benefit to the host nation.
Unfortunately, I don't have access to the full paper, so I can't see if it addresses the issues that matter to the working class. The headline/conclusion only matters to professional investors.