So just to add a follow up/closure to this. I did repair the Typhoon. I've had several successful flights without a repeat of the flyaway. Found nothing inherently wrong during the repair that would explain the crash. Replaced the parts that I anticipated replacing, went through and factory reset everything in so much as I could, reinstalled firmware, anything that might contribute to what happened.
But this Monday I did receive my new Mavic 2 Pro. I still plan on keeping the Typhoon but the portable size of the Mavic 2 is sure nice.
Back to the Typhoon however the one thing that happened as a result of the accident, I have yet to resolve. The front little cover that goes around the lens on the camera was cracked, not too bad but cheap part and replaced it. Nothing about the camera seemed damaged, everything looked great except that cover.
However the lens is showing a very blury, like a mis-focused area on the right third of the image. This happens whether video or stills. I've attached an unedited image that shows what I mean. After repairs the camera was blurry across the whole image and followed the steps found on YouTube to focus it. The best I can get is the right 2/3rd's in focus, not the whole image. The sensor looks pristine, nothing is lose or seemingly misaligned. My best guess is that an element inside the lens was knocked out of alignment, that is what it looks like. But speculation as I am not sure if the lenses have multiple elements inside them, just assuming they do.
I'll likely try a new lens as that is simple enough to replace and see, particularly if I can find one cheap enough. If that doesn't work I'll compare costs on replacing the camera vs. the various repair services. I still have some reservations flying it without really knowing what happened. Having the Mavic 2 Pro throws a different wrinkle in from the standpoint of "why fly the H when I have the M2P"? But I imagine there are some instances where the H might be useful, I certainly like the team flying ability, I have my son fly while I run the camera and it was working well.