I get it, he called it a "spy-chip" but the BMC really did have exploitable attack surface.
The difference between a purported nation-state backed subversion of supply chain and manufacturing lines, and poor security in the firmware of the BMC, is still night and day though, and still not what the original article claimed.
Tell Fake News, Get Promoted!
“The Wire” in its last season thought-provokingly explores this topic. What got me was the big lie was comprised of a mesh of micro-decisions, not a big monolithic deception.