Should You Photograph a Non-Human in a Portrait Competition?

This is what's causing some controversy because the portraits are supposed to be of humans. And this person took this picture of Erica, the android at the Hiroshi Ishigaru Laboratories in Osaka University, Japan. There's been this controversy. Should it be allowed? It's technically against the rules. So humans don't even need to apply for the job of model in human portrait photos anymore.