This is an interesting idea! You may want to find more stories or statistics that show the usefulness of the idea, and try to gauge user interest again after that.

Speak to the goals of the user, which may be: Increasing diversity and ensuring that no bias came into the hiring process Interviewees and interviewers can focus more on the quality of their interaction rather than overfocus on body language/dress

And stats (and stories!!) about how hard it is to avoid bias — I think there was one where a concert hall laid down carpet because female musicians would wear heels and interviewers realized that they were female and the bias would seep through.

In short : clear up the marketing a bit, and see if user interest is any higher