If your friends are looking for feedback, you can pass on that at least one person on the internet finds it in very bad taste for them to describe the delay in treatment as a "civilizational embarrassment" while planning to charge $20k for a dose. The pricing point seems equally a civilizational embarassment to me.

Not just embarrassing. A disgusting example of the worst parts of humanity.

I can easily imagine someone who don't brush their teeth ever to spend like $1000 a year for cavity repairs (because, well, I did).

So I guess $20k is near to the market price you could expect people to pay for a lifetime (with refills and no cavities guarantee) for this product.

If $20k it too much for you, just wait for cheaper generics.

That's not the point — the critique (as I understand it) is about the way in which it's presented.

Capitalism at its finest. A civilization should be measured at how it treats the poorest. By selling such an incredible cure (if it's really working) for thousands of dollars makes it impossible for the low-income class to purchase.

Sorry, but we don't know you either, so a word-of-mouth referral doesn't tell us much here. The Google Drive link doesn't provide anything substantive, like links to peer-reviewed, published research.

This comment describes the research: https://news.ycombinator.com/item?id=37635401