Thre is a law in the US where employers must pay foreign workers with H1B Visas at least the average salary in that field. The law is already there to protect US workers. I read the title of that news story and immediately thought this was an "sensational" article targeted towards people who know nothing about how H1B Visa program works.

Now if the autoher of the article you posted was training foreign workers not in the US, that would be a different thing. But the article specifies that the person was in the US. Article has some serious bias against foreign workers even though the facts say otherwise.