I think this is mainly a case of the common "didn't notice when crucial literature for own published content was retracted, get caught with pants down when the replication police come knocking".
Obviously the poor labelling is bad, but 9 bad citations per year isn't the end of science and better labelling wouldn't discourage all the lazy authors who chose to cite these highlight articles, it'll just shift whos is to blame.
The real problem is hosting a review article about research that was retracted, and it sounds like they aren't moving very quickly on taking that piece down.