You're already making up fictitious names, so how is making up fictitious sexes any different? By using non-unisex names you're implying specific sexes already.

You're already making up fictitious names, so how is making up fictitious sexes any different? By using non-unisex names you're implying specific sexes already. It's implausible that you would know somebody's name and details about their working conditions without knowing their sex.