If Castle_Rock is correct and this is just a cosmetic redo of an existing scope, that would explain the design. Can't just snap your fingers and change the eye-relief; everything's connected as they say. If, on the other hand, it's new, then the ER is either a compromise to achieve the other optical goals, or a giant boo-boo that will turn some buyers away, but obviously not all. Like it or lump it; buy it or don't; can't see them changing it now.
Castle Rock is wrong.
There is a Sightron that is physically similar in many regards, but the specs are wildly different.
weight, diameter, travel, eye-relief are all vastly different...all expect weight favor or the Sightron btw.
Dave