This is horrible to see, not only because of the pain and suffering that baby is in (and yes it looks broken, look at the bruising, that's internal bleeding from the bone, no it's not splayed leg at all, and there is absolutely no way to check for a broken bone without an x-ray) but also because this baby was bred and someone who breeds should always be ready to take babies to the vet, along with the adults.
I hope you and/or your friend realize that the baby's leg may very well become infected and this will slowly and painfully kill the bird. You say you've seen video of a baby bird with a broken leg heal and get around fine, but that's only if the bone is correctly set. If not the leg will heal incorrectly, causing the bird lifelong pain and disability. That's only if the baby doesn't die from infection.
Please have your friend call a rescue, shelter, pet shop, and any vet near her (yes there are vets) to see if they can find someone willing to help. Some vets will do things to help people that can't help themselves.
And please tell your friend to stop breeding!!! Separate the males and females, there are no accidental babies if a male and female of breeding age are put together by their owner...
I hope this baby is out of pain soon.
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