Hi Shawn,
Yes, I explored it last night and even put it upside down (who knows? It's one of my mantras). I de-distored it in several ways to see if someone had done something to it, but with mostly no geometry in it, it's hard to tell.
I have shot with drones and the lens distortion grid. I always got solid results with Cinema 4D, but I had at least ten seconds each time, with more movement before and after the center content. I typically do not touch stock footage for various reasons, and your example added one more to it; thank you!
Yes, the first file was done with Ae, and the second was an older version of Syntheyes (I rarely used it since I get most of my shots done with Cinema 4D). But yes, Syntheyes rocks (I took a dozen ten-part courses about it over the years at FXPHD and was always amazed at what Victor Wolansky could pull off with it, and he pretty much always started with the impossible shot.)
In the past 25 years, I have worked with many trackers and am curious about where we will go next.
My best wishes for your project