Green Card needs to be filed by employer and cannot be independently by the immigrant himself. The author is not disputing the point that there is a way to get in. The challenge is that at all points you have to completely rely on your employer to file and pay for all the visas and green cards. As anyone who has gone through the green card process can attest, it is a very complicated and lengthy process. It requires you to convince your company to spend 10s of thousands on dollars to file for your green card which doesn't potentially benefit the company itself. It requires putting out ads on newspapers, interviewing some candidates and then explaining why they can't be a fit. This is unlike some other countries (such as Australia or UK) where you can file your own immigration application if you check off certain things (such as level of education, no. of years employed etc.)
Also, the visa itself is not a guarantee considering it is a lottery. So even if you have a masters degree, it won't help you a lot in terms of getting you through the H1 lottery.
I was specifically referring to the National Interest Waiver, which, according to the page, says the alien may apply a Green Card themselves.
Also:
> The national interest waiver applicant sponsors him or herself and is not required to have a job.
And my wife has actually gone through the whole naturalization process and is a citizen. It is not a fun process, and is definitely lengthy, but for anyone that is motivated is totally doable.
Also, the visa itself is not a guarantee considering it is a lottery. So even if you have a masters degree, it won't help you a lot in terms of getting you through the H1 lottery.