Call me cynical, but I think they're choosing not to fix some stuff on purpose. If they fixed it, their news personalities would look less "in the trenches". If the video has flaws similar to what viewers themselves experience when they try to make Zoom work, then it helps the news media cultivate a relatable "we're all in this together" feeling.

It has become its own cinematography / production style just like the shaky cam style is used to make documentaries feel more authentic or action movies more chaotic.