Michael, glad to hear about your rapidly improving recovery. I delayed reading your report since I knew it would trigger memories of some semi-close calls I've had in the past that luckily turned out ok.
It's going to be a wonderful spring in the coastal mountains, so perhaps you'll have a chance to get back in shape from local hiking. Both Stephens Creek & Lexington will be (actually, already are) brimming full, so you can both hike & fish!
Boy, looking at that video definitely conjures up some memories. I distinctly recall standing at the top of that waterfall. I think I was there the day after your incident. I must have camped exactly where you did at the west end of TI (around 7pm), but don't recall hearing any helicopters.
I have a question as to orientation. In your initial report from last year, I seem to recall you mentioning you began to descend down the left side of the waterfall (looking down from the top). However, in the video, it appears you are lying down at the bottom of the right side of the waterfall. That is, just above at the cliff top is where I was looking down for the descent route (from the right side of the waterfall).
If you stop the video @ 2:13 (2:10-2:15),
https://youtu.be/xeoZ_yYdt4Y?t=133 you can see the edge of the horseshoe cliff gradually drop off a bit until it reaches the ridge-line where the helicopter has landed. That's the route I took. While it was no longer a shear cliff, it still required some class 3 down climbing using all feet & hands. I do recall while standing above the top of the cliff that if I couldn't find a reasonable way down, I was going to hike back to Mammoth.
Again, good luck with your ongoing rehab & recovery.