Some patients are spending a year and a half in hospital isolation receiving old medicines instead of just six months of treatment at home, because countries do not have access to the most up-to-date therapies to cure people of the infectious disease.
If it's a question of cost, then keeping someone in hospital for a year and a half surely has to be more expensive than just buying the drugs.
There's more information about the components of this system here:
https://docs.pears.com
There really isn't much to this Holesail project - it's a little convenience wrapper around Hyper DHT and that's a part of this Pear project it seems. That site has a list of the various components and links to each one's GitHub.
Pear looks like an interesting project but I haven't looked through the details of how it works.