The commentaries came later, and we have seen that pattern many times before as I gave three other examples of this ("get", "disobedient sons", & "adultery"). As far as the last question is concerned, I have already answered that several times.
Hey, I don;t have a problem with what you and Tumah have on this, and I'm glad you have that interpretation that you two believe in versus the one that I have. But the one thing you seemingly are avoiding is even admitting the patriarchal cultural milieu back then that I believe fed into that prayer. If you're not even going to admit that, then I believe you are pretty much using a set of blinders that probably has the effect of blocking out any attempt to try and look at this and probably some other things objectively.
I'm not trying to be insulting, but this is a common malady in pretty much all religions. In anthropology, we are trained to try and cut through beliefs but not judge them, and then study the various influences that led to the development of those beliefs. It often doesn't make us a lot of friends when we do this, btw.