It was not that long back when no seed company offered fem seed. Fem seed is is relevantly a new thing but Paradise seed was experimenting with fem seed not sure on the year need to look for that .
Then Exile i think his handle was showed up (I always thought it was Sam ) introduced a female reversal spray back in 2004 ish at CW before that there was no fem seed.
So going by what Chimeras is saying all the cannabis before that was inferior ?.
Males help purge or clear bad mutations they play an important roll its not just about the genetic history of a males paternal ancestral line.
I grew fem seed a friend gifted me to see for my self they turned out to be the worse plants i ever grew.
You might find his response in the pod cast helpful to answer your question. He was not referring to quality of fem'd plants vs regular, but rather the advantage of having your breeding parental lines able to show their traits. Male cannabis plants typically do not have the drug characteristics. So the males genetic makeup is only "seen" in the resulting progeny, where as two female plants can be evaluated for each parents drug characteristics before they are bred.
He discusses the advantages of using females as the parental lines. That is juxtaposed to breeding with males, then having to check the resulting progeny to "evaluate" the male lines.
Go listen to the podcast hempy, it's worth your time. Even if you disagree.
And15- 20 year old technology isn't new.