Yes but atleast you're not visible to others edit: so in order to use this, you have to install the app - "deactivate it" and only then will it accept the unlisting. Fucking bs
BS but I imagine this is how they verify you own the number and prevent a rival app from executing a denial of services attack on them by unlisting everyone’s number.
If they have full access on anyone having installed the app, it means they also have mined the conversations with your contacts.
So they might not advertise what they know anymore, but the privacy concern remains anyway.