It provides context but also emphasizes a particular perspective, that the subject "should have" or maybe "would have been expected to" announce what they were

It provides context but also emphasizes a particular perspective, that the subject "should have" or maybe "would have been expected to" announce what they were doing more prominently. The whole question of what is or is not news necessarily takes a certain perspective, though, so I guess this is always going to be a gray area.