Herms and germination issues have been around every breeder for a long while, since I've been growing at least. I'd say at least half of his current line will produce herms here and there. Same for just about everyone making seeds now. It's on the grower to research the hell out of the cross itself and it's parentage to make a decision based on their risk tolerances.
I hate to say it but so many states/Canada are going legal/medical right now that you've gotta take everything with a grain of salt.
I remember legit not reading threads on icmag many years ago for a solid 3 months because Colorado just got their medical rolling. Influx of newer/out of practice growers and pirates getting in over their heads with the same questions about the highest yielding, fastest growing, most potent, homogenous, sexually stable seeds available complaining about germination rates and herms or slow maturing plants. These people are white noise but they don't realize it. Imo the established community has to sift through trash information and opinions that would be better off not shared.
I'm not saying this is the case here. I just keep in mind that if my experience with a breeder is dissimilar to someone else's that it's irrelevant. Until it's my experience that's negative or doesn't reach expectations do I avoid a breeder's work. Someone else's negative experiences are not influencing my decision-making process.