Agreed, in particular the distortion of the players on the ends, the smaller shoulders and chest, as well as the lean can all be attributed to the wider lens used on the iPhone (and as such that the photo was taken closer to players). I'd guess the author was using the "1x" lens on the iPhone, a lot of these issues go away if they use the "3x" or "5x" lens. I'd even consider that most of the jawline change of the player is simply the angle of their chin/face as well as expression.