I can see how the court could take the view that an 11 week old baby is old enough to be left with someone for a relatively short period BUT what if the baby were younger?
I'd be inclined to think that letting her take the baby in and breastfeed her would be the least worst option since otherwise it could be argued that she is being forced to choose between missing the hearing and feeding the baby by what is agreed to be the best possible method.
If you limited it to babies who are exclusively breastfed, what real problem would it cause?