The intent and nature of the article could be important; and where it exists on various spectrums including newsworthiness, public importance, accuracy, information content.

It's also possible that the article - even if hardly read today - could become relevant in future in ways that we can't currently understand.

It could be argued that deleting the blog was an attempt to influence or close down aspects of the yet-unpublished article and reporting process. In other ways it may have actually added additional context.