Another note, one that extends beyond just the choreography/dance department: “sex positivity” is not an argument we should be having about children. For example, you cannot shut down criticism of sexual choreography for children, or of overly revealling/mature clothing for tweens, in the name of being “sex-positive.”
Sex positivity is a wonderful and necessary thing when dealing with adults. Consenting adults make choices for themselves. But forcing sexuality on children is not sex positivity, and forcing traditional gender roles on children is not sex positivity.
And a lot of the defense of these acts will market itself as sex-positivity in order for us to feel like we can’t criticize it. Don’t fall for it.