I mostly agree on point 2. Although a case can be appealed if a judge has not ruled pursuant to KS statute as well as an abuse of discretion or display of bias.
On point 1, the word "neither" is a negative word. Since the legal definition you just cited states "such as," this can be expanded to include other negative words such as"neither." Regardless, the judge who stated this on record did not qualify his statement at all. He said the word "shall" means "may."
Therefore, since judges rule us all, I guess KSA 60-16 can be interpreted as:
Chapter 60
Article 16
(a) Minor Children
(2) Child Custody & Residency
(C) Neither parent MAY be considered to have a vested interest in the custody or residency of any child as against the other parent, regardless of the age of the child, and there MAY be no presumption that it is in the best interests of any infant or young child to give custody or residency to the mother.
Now, I'm not a judge and I don't interpret law for a living, BUT, I think it would be wise for someone to "assume" before walking into the court room that a KS judge "could" interpret this statute as stated above. As you can see, the outcome can be entirely different.
I think you point is valid, but just like any argument (as you know), there are two sides to every coin. Smart people can twist just about any word or situation.