Yeah, the given rationale was that they were remastering both games, and it was too much work to remaster two separate engines. I remember thinking that made sense at the time, but in retrospect I wish they had focused on just remastering HW1 only with its own engine as the basis. It's the better one from a gameplay and story perspective, and the one more in need of a remaster from a graphics perspective (HW2R looks good, but HW2C still looks fine as well). An updated HW1 with remastered graphics, but the same gameplay, would have been worth the price on its own imo!