Not saying your wrong but I hadn't that and I work for comcast. Also My peacock still works so unless an employee account still allows access or everyone that had activated their account was grandfathered in you MAY be wrong.
I'm a Comcast customer and I have free Peacock. The payment comes with ads though.
Actually took a look at the bill. It's free for 2 years. Will have to make a decision to keep or ditch in June. It's likely going to be gone as there's nothing on it I watch regularly that doesn't show up on NBC.