The mistake is forking and hosting it on GitHub. If Haier sends GitHub a DMCA takedown notice, they will comply, and the forks will be deleted too. Use other hosting services for redundancy and keep a local copy.
Good point. Nothing in the article explicitly states that it's a copyright claim, but they do mention "protecting... [their] intellectual property". In any case, it's always easier for the website host to fold to cover their own asses than to continue hosting the content.