Exactly because of how knowing works, I think articles like this can have an important place. They can open up new concepts for us (often little more than an empty node that can later be filled in). For experts in the broader field, they can give a quick impression of what other people are working on which might stimulate digging into more detail. And for experts on this topic, taking such writing seriously can have benefits like keeping their work in perspective and stimulating creativity (see Feynman's point about teaching physics 101).
And yes, these articles satisfy emotional needs. But what good thing doesn't?
Edit: I was mostly responding to the parent->parent, not so much disagreeing with the parent, who raised a good point.