I agree, it's not an excuse to hand over an account. I think that commenter was considering practical mitigations for a broken system, not necessarily absolving NC of responsibility had my WHOIS been public.
I think their point was that if WHOIS data were hidden, a password reset request that relied on providing the email address would've been impossible. But since NC's account management allows visitors to provide just a domain name to generate an unlock email, domain privacy wouldn't be a protective layer here.
Yes it was enabled but it's unclear to me how effective it would've been in this case.
I attempted to login after support changed the password, but prior to the club president connecting with me. So I filed a support ticket that my password stopped working, and to NameCheap's credit they locked the account shortly thereafter. I worked with support later to regain access.
I don't know for sure if the club president was able to successfully auth with the new password before NC locked the account at my request. To be completely transparent, keeping this domain on my personal account was a legacy arrangement that probably should have been handed off sooner. Student club turnover being what it is, I was just renewing it so it wouldn't get squatted. We are fully transferring ownership to them now so there's no friction.
It's fair to criticize this arrangement as messy. Regardless, NC shouldn't have simply handed over the account to an unverified phone caller.