I'd think 'we don't know the side effects, it prob doesn't work, and they are trying to sidestep the FDA' would be good arguments against it. Esp after in the US Thalidomide (yes very much a dead horse), (mostly) wasn't a problem because the FDA stopped it.
Anyway, it seems like the full scale FDA project stranded due to not enough volunteers, so I suggest the HN people mad about this help out. Hey, it might turn out to actually work.
If only we had paid attention to the roomba hitting us in the leg. It wasn't adorable, it was a murder attempt!