“This is the story of the revelation in late 2013 that Bitcoin was, in fact, the opposite of untraceable—that its blockchain would actually allow researchers, tech companies, and law enforcement to trace and identify users with even more transparency than the existing financial system.”
I read it, the point is that people who hadn’t even read the basic information about Bitcoin presented by its creator assumed Bitcoin was anonymous.
This is not as groundbreaking as you seem to think it is.
Some people didn’t take the time to read closely or think critically and then made poor assumptions.
Like you, for instance, with your comment.