That photo of her from the side is absolutely horrifying.
Doctors won't tell you that this condition comes from neglect (because they don't want to stigmatize it and lead to parents avoiding the doctor or not getting treatment), but it does, often. The usual doctor line is "actually it comes from doing something right: putting the baby to sleep on their back!" But doctors know, and talk in their own families, about how kids with this condition are often left on their back a lot more than just in bed, and often have parents who are glued to a cell phone and engaging in "middle class neglect" like Becky, with bottle propping and other techniques used to keep the baby laying down. It's not always true, which is why they won't shame anyone, but it's something that induces a bit of judginess in some docs, especially those with kids of their own.
The best time to do a helmet for this condition is before 6 months old. Helmets will require a longer treatment duration at Hannah's current age, and will not help in a few more months, so this condition will be permanent. Untreated plagiocephaly/brachycephaly is associated with developmental delays and auditory issues.
If you read between the lines, Becky already told us about her response to this issue. When Hannah was about 4 months old (the exact age where doctors know it won't get better on its own and recommend a helmet) she said they'd had their first ever medical issue that Becky had to respond to with Hannah, and she patted herself on the back for how she handled the doctor. Given that there's no helmet, we can bet Becky's position was "my baby is perfect the way she is and we won't try to force her body to match the aesthetics of the dominant culture, you ableist racists." We started seeing tummy time photos of Hannah soon after but obviously her flat head was way more than a few minutes of tummy time could fix.
Becky is disabling her daughter on purpose. She's literally ignoring medical advice and the standard treatment of a disabling and aesthetically horrifying condition.
Hannah's pretty clearly between the "moderate" and "severe" levels on this chart. That's really bad and indicates a
higher chance of developmental delays if untreated. You can see in
studies that Hannah's head is significantly worse than many babies who are seen as definite candidates for treatment.
One thing to note is that the developmental delays, including motor delays, aren't thought by all docs to result from the head flattening itself, and they will make noises about it being other causes. The "other causes" are parents leaving their kid in places where they can't move all day. If your head is flat because mom and dad keep you laying down all the time (or sitting back reclined) and don't give you time to explore your environment, you'll have developmental delays that have the same root cause as the brachycephaly, but the brachycephaly won't necessarily be what caused the delays.
Either way, Becky wanted to keep Hannah ugly: look how she didn't bother using the cute dresses--Becky loves to do the "which cute dress should I wear?" thing and she always wears one of the choices, but when she did it with Hah-nah, Hah-nah got an ugly brown tank top with a turkey instead, the "which cute dress?" was just for Becky's social media affirmation. The head shape is more "don't compete with me, bitch" energy from Becky. Mission accomplished! And now she can be nicely visibly disabled, which should help get that coveted DAS pass at Disneyland.
