I just finished Guy Martin's book, "When you dead, you dead" highly recommended BTW, he writes about his Ulster GP get off in 2015 in the last chapter. During the book he described the electronics on his BMW S1000RR as very good, in most cases, keeping him from harm in races, and with data log replay he could study what his throttle hand was asking for and what the bike delivered in any given situation at the IOMTT. When you watch the clip, I wonder if he had slide control that is standard on the Yamaha R1 if it would have saved him, or if he had his TC switched off, if that would have saved him as well.
Guy was fighting for the lead on the last lap against Bruce Ansty, and was pushing hard, but nothing he hadn't done before on the track.
In Guy's own words, from page 311, "I can't say for sure, but left to my control I reckon I'd had saved it. I've had slides like that before and I let them develop. I reckon the bike's traction control had shut the throttle for me, when I'd have kept it sliding more. And when it shut off it gave the tyre a chance to grip again and caused me to back off over the highside."
My point is sometimes you need to trust your wrist and feel for what the bikes tires will give you, in this case, who knows if he had TC switched off or had slide control he may have not have crashed and knocked himself out in the process.
Just an observation, feel free to share your experiences, God forbid, if you have had any or know someone who has and watched it unfold in front of you.