It looks like it would be top heavy.
Indeed. And with the ballast necessary to account for that, I doubt the 32 knot figure tossed out there.
The pyramidal structures are largely hollow and enclose various antennas and sensors to enhance the ship’s stealth characteristics. Starting to look like the “pagoda” superstructures on WWII Japanese battleships.
As for the bombast about having double the firepower of the Arleigh Burke class, that is hardly surprising since, at over 17,000 tons, it is also nearly double the displacement of the US destroyer. There is a direct correlation between hull volume and munitions (missiles) embarked.
This “destroyer” is really just an updated slightly smaller version of the ex-USSR, now largely out of service, Kirov battle cruiser class. Very dangerous ships but, as others have noted, low availability rates due to power plant engineering.