i'm no breeder, but with all due respect, that's bullshit. the seeds would carry the hermie gene. when plants are stressed into hermaphrodites to create femenized seeds, it's through other methods than creating more hermies.
Even when making feminized seeds the plants forced to turn, by using colloidal silver or by rodelization, are not that female plants that are pollinated and used to make feminized seeds. Those females, just like a hermie, have been stressed, they have been abused, and if used to make seeds they too will pass on hermie genetics.
The pollen from females where colloidal silver or rodelization have been used to force them to produce male sexual organs, bananas, is collected and used to pollinate a different crop of females. Even then some hermie tendencies can be, and are, passed on. That is why there are so many hermies from feminized seeds. But by using the pollen to pollinate females that are not stressed, that were not abused, it minimizes the passing on of hermie traits as much as is possible.