There's plenty of problems with corporate control of the Internet, but this here ain't one. This is, in fact, one of those situations where the DMCA does a good job.
All right, you've stated that you think that having to remedy such an obvious abuse by hiring a lawyer is not a problem. But the question is, why don't you think it's a problem?
I do think that would be a problem. But I don't think that's what's on the line here. Why would you need a lawyer to file a DMCA notice against GitHub if you're 100% certain that the code in question is copyrighted by you and distributed unlawfully?
I think the article states and it has been repeated several times in the comments here that the author already did so and that a lawyer is now required because the offender disputed the claim.