There was a bunch of discussion about how great it was that ABC had "finally" covered the Hunter story, and that perhaps the rest of MSM would now do so.  The scene where the ABC reporter asked Biden about Ukraine was presented to seem like it was recent and they were "on the case". Them sitting on the news isn't the story here.  As you correctly point out, they do have a tendency to do so.  The story is that they are pretending to be aggressively pursuing it, and we all know why.  It plays into several of their denial non-denial tactics.