When I did the search, I got something, but not the rash of articles I expected. So I'm reading them and noticed all of them were done in the middle of April. I got back to the Medium article, it was done at the same time. Why would Medium send out an email with an article that's 2 months old? I just shook my head and remembered the number 1 rule of reposting.
"Search for additional sources covering the story. If you can't find any other reports, it's best to move on."
This keeps you a reliable source to your friends and followers.