I think it is incorrect, from experience, that pairing prevents the remote from being used on another piece of hardware.
Pairing, and allowing only the paired remote to be used on the Macbook, is a security measure used to stop others using their remotes when you’re sitting in a coffee shop to constantly put you into Front row, for example. However, the ‘use only paired remote’ restriction occurs on the Macbook, not the remote.
This means, unless your dock will also pair with a remote and only accept that for control (which I doubt), using the paired remote on the Macbook could in some cases (depending on hardware placement) trigger control signals being sent to the dock also.