It certainly suggests this. Full bullet: If you use the SRD to find, test, validate, verify, or confirm a vulnerability, you must promptly report it to Apple a

It certainly suggests this. Full bullet: If you use the SRD to find, test, validate, verify, or confirm a vulnerability, you must promptly report it to Apple and, if the bug is in third-party code, to the appropriate third party. If you didn’t use the SRD for any aspect of your work with a vulnerability, Apple strongly encourages (and rewards, through the Apple Security Bounty) that you report the vulnerability, but you are not required to do so.