I could not read the full article so I don't have all the details about the report, but the scope pretty limited. There are equally numerous reports about e.g. BigTech H1B salaries being much higher than typical. So that raises the question, which is the greater effect?

Better instead to look at larger scale studies out there, including the ones I mentioned in the comment I linked. The results are much more nuanced, but generally they find negligible or mildly positive impact on native workers, suggesting they are largely orthogonal to foreign workers.

The point is that the dynamics are more nuanced than simple supply vs demand.