Typically, replacement tires chosen for necessity - replacing a failed tire on the roadside - will result in a tire not being registered. Unregistered tires will not get recall information from their manufacturer. Tires changed at home are seldom registered. Without sending in the registration forms an owner is outside of the information circle.
The reference in the original post above provides a point of contact for those seeking information about the recalled tires and how to file a claim.
FE