I've noticed this post talks a lot about the ability to focus the lens on the High Quality Camera, and the inability to do so on the V2 Pi Camera, however you can change the focus on the V2 Pi Camera. Earlier models of the camera (and most third-party clones) have the focus fixed with a dot of glue (even these can be adjusted with enough effort, though I wouldn't want to suggest everyone do that - it's definitely worth just grabbing a V2 camera) but the V2 Pi Camera module is a lot easier to adjust the focus of; one that I purchased (and one that a friend purchased) even came with a small wrench to adjust it easily.
The main difference in the comparison photos shown in the article seems to be the focus, and seem to give the impression that the only way to do close focal work is to use the new camera, but this is not the case. I would be very interested in seeing the same comparison photos but with the focus appropriately set on the V2 module, or even better, it would be good to see comparisons in low-light performance from the new module due to the increased bit depth (I think? I haven't fully read the specs) and sensor size.