Only if your reading comprehension has flown the coop. Read the article again. The author speaks of her husband, and of her pregnancy after marrying him. She says they became mom and dad after becoming husband and wife.
It seems strange to me that you would assume anything else.
"And isn’t divorce rate some 40 to 50%?"
Nope. That's a myth. It was based on projections made in the 1970s. Do a google search and yo'll find endless refutations of it.
"Divorce between spouses has become a kind of social norm, regardless do they have common kids or not, meaning up to half of all marriages finishes this way. No go show me an individual who divorced own kids! There is no such thing."
Sure there is. I give you the example of my husband's father.
Husband's parents divorced when he was around twelve. Prior to that, his father had been a perfectly loving dad, and continued so for a while after the divorce. But when my mother-in-law remarried, the man moved to another state and effectively DIVORCED his children.
My husband and his siblings tried repeatedly to make contact with him in the form of phone calls, birthday cards, etc. The only reason they had his address was because his sister, who was disgusted by his actions, gave it to them. But all their reaching out was in vain.
Even as adults, they made occasional attempts---most recently a few years ago--to get in touch with him, as they knew he was getting older and thought it was the right thing to do. But to no avail. The aunt says he just doesn't seem to want anything to do with his children, that he seems to blame THEM for having a stepfather.
They won't try again...they understand it would be useless. It's truly his loss...not only because of his wonderful daughter and sons, but because he knows he has grandchildren he will never see, and he's fine with it.
As for me personally, my father-in-law is the stepfather who really DID "step up" to care for those kids...the guy who took off and put up a wall is just some stranger I've heard talk about.
So, yeah, divorcing the kids does happen.
This is deeply disturbing to me.