Proof of concept? What?
The first picture is nothing more than a satellite pic of the USS Forrestal and the USS Saratoga mothballed in Rhode Island.
The two following pictures are simply the same tired photographs we have seen of craters in the desert.
The final pic is simply a PLAN test ship at dockside with no relation at all to proving a operational, fully tested system.
None of those lend the least credence to the PLAN being able to hit a moving, maneuvering (and maneuvering means a LOT more than "rotating") target at sea.
As has been stated numerous times...all the excuses, all of the white papers, all of the craters in the desert, all of the touched up photos from other sources, will not make up for or account for the lack of actual live fire, full up tests of this system actually attempting to do what this system purports.
Until that happens...and numerous times so it can be improved upon and perfected...to any serious real-world analyst, this system remains an untested, unproven concept, that may well have undergone static tests and may well have even been deployed, but nonetheless has never really been tested.