If you're Brian Krebs and are writing, editing and publishing this stuff yourself, I don't know that you'd have the bandwidth to be able to monitor and correct every new development in something you've written. The New Yorker has a staff of hundreds of fact checkers, lawyers and proof readers just to keep them out of court, and they too seem to have a difficult time with publishing corrections.
I'm not excusing either party, there are issues here that need to be resolved. But the expectation that any part of the press, be it publishing a physical newspaper or running a security blog, will spend much time paying attention to old stories for corrections doesn't match up with reality.