They are a bunch of "Apple" tree hugging rubes at that site. It used to be like Engadget (not nowhere near as bad as Giz), but something changed a few years ago and they went off the cliff of sanity (IMO). I used to use the site a lot, so noticed their change in site direction.
The review seems odd, shallow and too opinionated. An example is the low light pics, since apparently Giz did not use the low light feature on the S4. The speed is also odd, since common view is it is very fast and no better or worse than the One phone.
This makes Engadget reviews seems like great examples of science. Since an opinionated review, how can this be an "excellent" review, unless you AGREE with the review? Hmmmm.