I looked at an
old version of their Terms of Service page and found that they've said they may request KYC from customers since at least March 2020:
The information we request may include certain personal information, including, but not limited to, your name, address, telephone number, e-mail address, date of birth, social security number, taxpayer identification number, and a government identification.
It looks like they made the change around that time. Even though they should, I don't think they will release the funds to you without ID at this point; it might have been a different story in April or May.