There's something perverse about feeding turkey to Woodstock. In any case thanks and Happy Thanksgiving to you too (even though you don't celebrate it ). I'd post a pic but I'm still getting that size error and I'm too lazy to resize.
We now allow file uploads of up to 51200kB (depending on the user group) and file sizes of 4,032px. We have also increased the max execution time, and I could upload a 33MB file on Sempai and Moderating accounts without issues. So, even if you use ProRAW format on the iPhone, it should work. Can you try again?