Hiring at FAANGs is hard. A lot of the H-1Bs I worked with got internships somehow, which is a lot less hoops, and they were good in the internship, so you want to give them an offer when they graduate. If they need an employment visa, then you have the experts research their experience and craft a job ad that only they can fill, and place it where it will be least seen but complies with the law.

That's abusing the system, but I dunno, better than abusing the employees that I hear about... Or the straight up fraud where immigrants were paying to get hired on h-1b for fake jobs, or the abuse where job shops would submit 3x the applications for the number of positions they actually had, etc.