So?
Have you thought maybe she’s distracting herself from her sick baby in whatever way she can, and for her it’s putting on make up and updating people once a day who have stayed with her through the pregnancy?
Just because you’d crumple in a heap doesn’t mean other people can’t cope in a different way.
Im using your post as an example, but this is a general observation. Just because one person reacts one way or thinks they would doesn’t mean it’s the only way.
The woman had a baby, she’s hormonal and coping by literally putting on make up and posting once a day on each of her channels.
Edit.
Theres a lot of things to judge but I feel anyone who pulls up a new mother on what they do to get through, especially if it’s not plain sailing needs to give their head a wobble.