Well on the health side, he might not quite be Steve Jobs level, but he spent months taking complete nonsense "treatments" where his medical condition (predictably) worsened dramatically. That part's certainly a cautionary tale.

Sure, though I'm not sure why that matters as I am pretty sure we all have some sort of cautionary tale in our lives the further back you dig.

I don't agree that this is a clear-cut example of a cautionary tale. I think for most people it can be a cautionary tale since it's common to chase things that promise hope in a desperate situation. We also shouldn't dismiss that someone can weigh the risks and take a gamble on something working out. I don't think there's anything inherently wrong or stupid for someone trying something conventional even if it backfires.

It's important to try and see this from Scott's perspective. According to him, he had his use of his vocal cords restored by a treatment that was highly experimental and during a time when all the official information said there was no treatment. If we are to believe his words, it worked out for him once, so it makes sense that he would decide to try things that are unconventional when his entire life was at stake.