An Arleigh Burke DDG has a similar signature - but it can actually transit overseas and remain there for months.
Arleigh Burkes aren’t stealthy at all by current standards. The Zumwalts have somewhere around 1/50th the RCS of a Burke, while being much larger in displacement. We try to reduce that with radar absorbing tiles and blankets all over the ship, but you can only do so much. But yeah, the Burkes actually deploy regularly and have purpose, while the Zumwalts have become a very expensive “proof of concept” for other future designs.