I cannot imagine how something like this can happen: for a ship to capsize in water that shallow. Perhaps the captain deliberately ran her aground when he realized she was taken on uncontrollable amounts of water. In the pictures I saw, the damage to her port bilge was phenomenal, no ship can survive a wound like that. Also, the below-the-waterline damage was on the side of the ship exposed to the air. Something doesn't add up.

She does appear to be one of those modern new cruise ship designs optimized for profit rather than sea-worthiness (shallow draft, flat bottom, wall-like superstructure, top heavy, vane-stabilized). I don't really know for a fact if these new-fangled hull shapes are as unstable as they look, but I know I would never trust my family's life to one.

I have a theory about these vane stabilizers. They rely on gyro-actuated hydrofoils sticking out of the hull like pectoral fins to keep the ship upright, as opposed to relying on hydrostatic buoyancy provided by the curves of the ship's hull shape. Nicer ride, more spacious hull, cheaper to build, but it is not mechanically fail safe. We had a cruise ship that limped in here like this who had almost capsized in calm seas, causing many injuries (fortunately, no deaths). The news was very vague about what happened (cruising is BIG business here in Lauderdale) but I suspect a rogue stabilizer jammed and threw the ship into a roll while she was in the middle of a turn at speed.