I would say it is not what it adds, but what it expresses without attempting anything else than having those words read. It echoes the disconnect a lot of us feel between the power of a world-changing-device with what is being used for, embodied I think in what I often read here on HN comments: "This era has produced the smartest (or more knowledgeable) and wealthiest people in the history of humanity an what are they doing? trying to make you click on ads."
The smartphone has reached maturity and very little more can be said that hasn't been said about the technology inside of it so maybe it's time we take a step back and rethink the place of it in our society, or maybe not or not yet. The value of at least asking that question is what I took from the article.
In other words, it is more a "review" not of the phone but of the people using it.