All the officers overseeing the construction of the Scimitar would have to tell the Romulan Senate was that the military's newest and most powerful warship was well underway to completion and that the Reman labor was performing above expectations. The Praetor and Senators would have simply applauded at their Star Empire's continued prowess just four years after the destruction of the Dominion War.
But there were no officers overseeing its construction. The ship was built by Remans at Shinzon's secret base. The Romulans had no idea he was building the ship.