This is true, but switching to that mode is frustrating and you often have to use AWFUL mobileOS software to get the images. And my DLSL shoots like 25FPS and each raw file is 80MB. This is NOT fast to send over the wifi.

Waiting until I can plug in the 2TB memory card to my Mac and use a huge screen to review all the photos is far more efficient even if it has much higher startup latency.

Honestly this is a good reason to choose the iPhone Pro over the Air or Standard: 10gbps USB port. Plug the Nikon in to the phone for cloud upload. This would be the fastest path of all. Most people are only focused on the USB bandwidth in the iPhones for download from the phone.