Mine is marked the same way as yours. I don't have a problem with that. My gun also came in a Uberti box but it does say Cimarron on the side label. If yours is a Whitneyville model are the trigger screws coming through on the right hand side of the frame?
I have found several pictures of real Whitneyville Dragoons, not reproductions, and the screws DO NOT show on the right side of the gun. The picture(s) in Uberti's (and Cimarron's) catalog(s) also show no screws on the right.
This Uberti replica may have been correct once upon a time, but Uberti has probably decided they can save a few pennies by drilling straight through, like all the other revolvers they make, it was a small detail anyway.