It was a stupid retcon to start with. TNG onward also retconned out things. It happens all the time. ENT retconned in a joke, it was a silly joke because fans could not handle Trek laughing at itself. If they want to keep the story, they do not have to keep the look, maybe TNG klingons are the aguments eh?
Doesn't really answer my question.
For the record, I tended to like the Augment virus episodes.