The title of this article is misleading (they are not legalizing Bitcoin, but clarifying the legal status of Bitcoin) and the source is questionable ("Source: News Tip Via Email")
It's not misleading, it's open to interpretation. Unlike clickbait posted on other news sites, this title is technically speaking correct.
Not everyone wants to be disclosed as a source for this kind of information, which is something certain writers honor. Or some sites just don't use source material at all, which is also an option.