In shipping generally is not much wisdom,, more like reaction to the failure to foresee. Once this is done, it is usually overshot to the extreme until it makes boom somewhere.
Same with the mega passenger vessels, all good and nice. But just imagine a situation a collision, the passegner vessel sinks with 5000 plus peoples aboard. Does really anyone think that they can be taken off from such a ship in time !! ??
I predict, that when that really one day happens,,the sinking of such a ship, that all those who were involved in the desgin/construction/approval and operation will say : we do not understand,, ,,,,,,