I think the proposition for that feature is fair. Some of them are also based on metadata people intentionally add to sites to be used this way. Source content is featured, people can choose to follow it. Everyone wins. In fact you pretty much have to follow the source, because by now we know the answer is not as simple or correct as it seems. Not sure how that translates into a completely synthetic summary that appears to be authorative.

Of course, it would be suicidal for Microsoft to just provide answers, they also want the advertising revenue. But do they expect it to come from the page sources, or something else, which adds its own distortion. Another dimension to examine.