The definition of lying generally involves intent. Do you think these journalists generally are intending to mislead with statements they know are untrue in the same way the producers of fake news do?
It is always better to judge outcomes. Actions, not words..
Lying, then, should be judged not on level of intent, but on severity. And on this metric, all those reporters involved should feel, and be judged, personally responsible for the deaths in the iraq war and aftermath.
I am not sure anyone should bother finding a proper label for each shade of those lies.