Honestly that's not the reason. What changed was a new wave of people not buying their "Israel can do no wrong" BS and are going with the tide. The news isn't interested in "the truth", but in having an audience. They are corporations first and journalists a distant second. I know it sounds like I'm gonna go off on a weird fake news right wing tangent but honestly, why else are they so slow on the uptake? The evidence of Isreal ethnostate oppression and brutality over Gaza has been nakedly obvious for a long time now.