That is a single article. Are we really supposed to call into question the entire credibility of the past and present of a news organization because of a single questionable article from years ago? Bloomberg is great at breaking financial news faster than any of the other financial news orgs. That one article you linked wasn't even their specialty like this post's article is.

I'd say that Matt Levine has a fair amount of credibility. He's probably my favorite finance columnist.

TFA is from the "opinion" section; I'm very confident that the article is at least somewhat reflective of Matt Levine's opinions.