Why are you asking about gender in your call for papers process to begin with?
Don't worry. We did a blind selection. We did not know which gender the person has when selecting the talks.
We just wanted this for our statistics to get a feeling if we needed to work on the CfP while it was open to get the outreach we wanted it to have.
Okay, but how does that fit in with the non-binary view of gender? If it came back 90% male and 10% everything else, I'd guess that you'd conclude that you need to do more outreach, but would you come to the same conclusion if it came back 50% male and 50% female? What if it came back 90% no choice and 10% everything else?