“How did the pundits miss the obvious advantages of a dual camera?” — They were looking at all the crap uses of dual cameras that came earlier. LG had the best implementation of dual cameras prior to iPhone 7 plus, and even it was considered pretty useless, switching from regular to fish-eye. Huawei did one that enhanced contrast, which is good but not a major feature. Others were 3D, which would be great if 3D had caught on. Apple’s zoom solution is unprecedented. It works seamlessly with the existing pinch-zoom control. Who even thought that was possible? Clearly not unimaginative tech bloggers.