TL:DR? Feminized seeds do not increase the chance of a hermie.
GSC is a hermie, the cookie fam admit it in an interview with high times, and call the seeds people find "fortune cookies."
Everytime someone uses one of those seeds to make another batch, it will have a decent chance to hermie.
And then they find seeds in THAT bud and guess what they do?
They grow them again, and MORE people find seeds in their buds, and MORE people grow hermies!
Now they have an "F2" and everyone loves the buds because its a girl scout cookies cross and people are stupid. Try to count all the cookie crosses available. Before you buy one you have to ask, are they properly line bred to get rid of the hermie genetic?
GSC isn't the only culprit, it's happening all over the world with hermies of all different kinds. But until we start eating those seeds that we KNOW came from a hermie, the problem is going to get worse