Wired.com is a left wing website. The author tries to smear it as being anti-Semitic, based on medieval stories about Jewish practices. He also calls the adrenochrome tales "dog whistles" to the "far right", the language used by leftists to smear anyone more conservative than Mitt Romney or Paul Ryan. Additionally, he uses the canard, conspiracy theory, a common tactic to smear anybody who dares disagree with the mainstream narrative.
I don't know if there is any truth to the accusations of blood sacrifices. However, a leftist writer who uses the same snarky language used against conservatives on other topics would tend to induce belief in a conclusion opposite to his.