Irresistible force meets immovable object. The iron fist of franchise commitments versus the business case of transporting more ferry passengers. Delaying the departure from Holyhead so as to not maroon Stena Explorer pax for an extra hour and a half and therefore give them the best possible connection to London versus the requirement to serve Rhyl et. al. Solution - two services, a fast and a stopper. Works in theory (10 minute change at Chester from platform 2-1 is quite doable), but as with everything in public transport, there's always that risk of delays. As someone who winces when full and standing on the 1239 HHD-Maesteg pulling into Rhyl, Prestatyn et al seeing the armies of buggies waiting to be let on when there's no room, I certainly see the logic and reasoning.
Just a quick word about perceived demographics -- the earlier sailing (the Irish Ferries service) sails directly from Dublin whereas the later sailing (the Stena Explorer) sails from Dún Laoghaire -- as such I imagine most foot pax and as such most train pax will be coming from the city centre rather than the out-of-town port, which I imagine will be mostly car drivers. (The prices are identical for both services - £33 / 41)
Just a quick word about perceived demographics -- the earlier sailing (the Irish Ferries service) sails directly from Dublin whereas the later sailing (the Stena Explorer) sails from Dún Laoghaire -- as such I imagine most foot pax and as such most train pax will be coming from the city centre rather than the out-of-town port, which I imagine will be mostly car drivers. (The prices are identical for both services - £33 / 41)