most likely a plant or two had a few male flowers, it just happens sometimes.usually from a stress,to much N at a wrong time in the grow cycle,an extended photo period,(light leak) etc. not sure if some strains are more prone than others to this?
the male flowers usually show up late in the bloom cycle so the seeds are just a snap,crackle,pop thing. no sprouters

As I understand things, if the seeds were self pollenated then they WILL produce more hermies, BUT if the pollen came from another plant then most of the seeds (if they are viable) will produce FEMALE plants.

hows the smoke?

Daddy