Why addressing is required in Poll / Select method and not required in ENQ/ACK method?

Why addressing is required in Poll / Select method and not required in ENQ/ACK method?

Addressing is required in Poll / Select method as it is a not point-to-point configuration, For the primary device in a multipoint topology to be able to identify and communicate with a specific secondary device, there must be some addressing, while ENQ/ACK method is a point-to-point method and for point-to-point configuration, there is no need for addressing.