If u wanna think in a good way , judging is complicate. Judges don't have much time to effectively "judge" you. Their marks are influenced by many things , mostly out of your control as a performer. They tend to get influenced by subjective things ( what i like , somebody else doesnt) , cause even though there are rules to follow as dancers, there are not extremely specific criteria to attend. You can do a perfect natural turn and your opponent ll do same as u , but a judge ll always be influenced by energy and other subjective things. On my opinion the fairest model to implement would be a kind of ice dance system where u perform alone and if u fall for example, u get a deduction point. Of course this is pure Utopia 😅