That the agency is charging pilots means the airlines aren't willing to foot the bill -- so the agency is basically operating independently of the airlines, perhaps simply passing through candidate resumes "on speculation".
From the description it sounds like the agency will apply for H1B visas on behalf of the pilots (which in itself is an interesting side effect of the 1,500 hour rule.) From the other thread we can see that there are only a handful of pilots granted H1B visas each year, and Trump has promised to restrict / revamp this visa category even more.