Personally, if I were going to present an article on two cameras, I'd do my best to try and take the SAME FRAMED PHOTO (within the capability of the cameras). That might mean moving a few feet instead of just standing there or adjusting the zoom if it has it (it's best to keep the lenses within the same aperture, though for a good comparison). Given you get an immediately result with digital cameras, you should be able to adjust the framing to match within reason!
Without taking the SAME PHOTO, you can't be sure if the cameras are getting the same auto-exposure cues (e.g. the grass in the foreground on the last picture is on the left in the iPhone picture and the G7 shows grass on the right and the house in the distance is much further away on the G7. It's not even CLOSE to the same framing! Similarly, in the first photos, the fence is at the bottom in the G7, but 1/3 the way up in the iPhone and zoomed in more on the G7 this time (the fact one is closer than the other in one photo and then reversed in another tells me it's not due to a wide-angle lens on one of the cameras or they'd be consistent!) Did the author spend more than 30 seconds on this entire photo shoot???
Frankly, the article is meaningless with such poor framing of the subject matter. Yes, they might be two different lenses and that can affect the field of view, but that doesn't excuse shoddy comparison picture taking!