I have also heard the same thing, and when I looked into it I heard both sides of the fence.
To me, I can see how it would be hermie seeds, but from experience it's only been female for me. But I don't want to say it's a guarantee, because I've heard from others who got hermie plants from hermie seeds. Granted, they could have been female but made them hermie on their own, who knows?
I would still save the seeds and grow them regardless. You won't know until you grow haha