For me, that's a good reason not to have any of their seeds. I understand that a professional geneticist, or sometimes even a breeder could make use of these raw unselected herma genetics, maybe trying to find-analyze-awake-activate (whatever) some specific genetic properties, like resistance to illness and drought, for example, or just for learning, sequencing or whatever scientific work geneticists do. I don't think that we must believe that these genes we seek for are going to disappear once we make a work of selection, but I can understand that this could happen and the wider the gene pool the better.
But I don't really understand why normal pot smokers would grow them. Much better to start from a selection that joints the best characteristics of the strain, and saves you the years of work that are needed for selection, for example sexual traits. You can't work with hermas. That's my experience.
"Authenticity" doesn't mean shit if the "legitimately authentic" is a weak herma sativa that never finishes and is going to be terrible in taste and effect once grown. People back in the day (60's... 70's) liked their weed, so I can't believe that in the seek of "authenticity" people are growing plants much worse than these they had back in the day because it is "more authentic". I also believe that some cultivars, like for example Jamaican strains, have degenerated due to lack of selection.
All the varieties of cannabis have been made this way from thousands of years ago: selecting. Like any other vegetable like rice, potato, tomato, whatever. It is plain stupid not to get seeds from the best specimens if your objective is not scientific and what you want is to smoke weed.
Cheers