Squandered opportunities - they could have reskinned the MU CGI Defiant to make it look like it was built in haste from whatever resources they could scrounge up instead of painting it to look identical ro the Starfleet version right down to a meaningless hull number.
I thought the MU Defiant was unmarked.
Yeah, it was. https://ds9.trekcore.com/gallery/albums/4x20/shatteredmirror_275.jpg https://ds9.trekcore.com/gallery/albums/4x20/shatteredmirror_203.jpg https://ds9.trekcore.com/gallery/albums/4x20/shatteredmirror_288.jpg https://ds9.trekcore.com/gallery/albums/7x12/emperorsnewcloak_645.jpg
Unless those big blue and gray hull panels are some kind of camouflage or insignia and not different types of armor, you got what you wanted. I do agree that they could've mussed up the bridge a bit more rather than just changing the color of the lights.