I do not find anything missing here. This is how things often plays out in reality. Both your retelling of it and what was actually written in the article.
Your retelling: Some people agree and some disagree with new metric. That is completely normal. Then someone who agree or want to achieve the peace or just temporary does not feel like doing "real jira" tasks fixes warnings. Team moves on.
Actual article: the warnings get solved when it becomes apparent one of them caused production issue. That is when "this new process step matters" side wins.