Obviously when it crashed it wasn't 10 feet above the water. If I hovering drone doesn't stay at the same altitude when it's over water, that's news to me. Why wouldn't it? But I like your chart. Read my new post at the end, and it will surprise...
I will research what is considered wide angle and get back to you. The key parameter is FOV, not mm.
The DJI Mini 3 Pro's native Field of View (FOV) is 82.1° (24mm equivalent).
I thought 90 was a normal FOV.
No. This was in December 2018, my Mavic Pro Platinum, that had the battery attached to the top of the drone. The battery was slightly swollen, but I had flown with it a lot like that.