Ball Pythons are not a species kept in Australia, so I have no firsthand experience with them, but I understand there are certain colour patterns that are associated with a neurological defect, which varies in its severity.
As I understand it most of these snakes live well enough in captivity, but breeding animals with problems just because they are pretty is a mistake we have made over and over again in other domestic species so I would be disinclined to breed from individuals that exhibit symptoms of that head wobble, for fear it may become progressively more severe in future generations.
I will note that there are many reptile morphs which are entirely healthy. Spider ball pythons exist because you can’t have the spider pattern without neurological issues, but there are many morphs which are simply a pigment variation and are entirely benign. Look at the number of crested gecko morphs that exist with no issues.
It’s certainly never a good idea to breed animals just because they’re pretty, but breeding for pretty animals while selecting only healthy parents can be done responsibly.
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