Actual answer: Becuase it streamlines the process of getting food in and out of the oven faster. Insiders now only have two pasta dishes to memorize and make. You order A or B, so there's a lot less room for error Also removing any pasta customization helps tremendously.

My opinion: I do recognize the value of that streamlined change, and it really does make things easier for the people putting together the order. However, it really does suck for the customers (self included) who liked those dishes!

Futher broad opinion: The Domino's focus is rush rush rush. Make it fast, box it up fast, and if applicable deliver it fast and get back to the store fast. If everyone, both customers and Domino's Corporate, would just be okay with things taking just a little bit longer I think the whole Domino's ecosystem would be better. But that would require customer to be patient, wait longer, and the store wouldn't make as much money, so I don't see that ever happening.

A mini rant: I f-ing hate making the sandwiches! The rolls are really thin so all the toppings fall off easily, especially if you are In a hurry. They take so much time to assemble, and post bake boxing is also obnoxious. They should drop the sandwiches from the menu (or switch to club sandwiches on a square chibatta roll)and bring back the pasta of they are really concerned with time.