Small families are only an option today because of contraception and less than 5% child mortality in the developed world.
Having 5-8 kids you support and raise yourself today is a cultural outlier in a society of 1.9 kids per woman. Given how many people complain that stay at home mothers are selfish or undermining feminism, having two or three times as many kids than average leads to even more targeting, even criticism from parents of two and three.
That makes large families all the more bizarre to most. However, it is a traditional style of family (though harkening to a time you had 6 kids hoping 2 grew up).
Women cannot have it all, full time job, couple kids with close supervision, fantastic body, deep personal friendships, etc. The media and feminism has lied to us on that, hence the articles on how women can have it all - without kids. Many without children or just one or two look at a woman with many children and say she's hurting them, undermining herself, etc. No, she's chosen to focus on family as her contribution and legacy to the future. It just isn't the politically correct one.
And as long as she isn't asking the rest of us for money to raise and support them and raising decent people, I don't care if she does.