And in a panic strickem situation, I doubt people will be able to find their muster stations on a ship this size!

Yes, all is rotten, they only wont to get money and Costa Concordia is the best example for a sinking ship to be evacuated on high sea.No more questions, useless.

Bu who pays DNV? Oh yes, the shipowner! If class don't agree the shipowner will use another classification society who will, and DNV then lose business. The whole system is rotten to the core and has been for decades.
This ship will have a complement of over 6000 people, can you imagine what it would be like to attempt to evacuate that number in the statutory 30 minutes as allowed by SOLAS? It would be hard enough to attempt to fit 293 people of all shapes, sizes, ages and mobilities into a lifeboat in that time, assuming there's no panic and enough ship staff are available.
Costa Concordia should have been a wake up call for the IMO and cruise ship industry, unfortunately it has not been and it will take a much greater disaster with many more lives lost for changes to occur.

Yes,yes and if they are drunk, it's cold and stormy up to ten and the ship is sinking within a few minutes all will possible. DNV has certificated this boats and I think, they will have enough experience to be sure about a safe rescue.

The training and qualification of the crew mean nothing if your passengers are panicking, include children/infants or are less than able bodied, e.g. restricted mobility, disabled etc.
Should this ship ever sink there will be a lot of people ending up in the water and not in a boat or a raft.

I think, that's too shortsighted, it's a question of training and qualification of the crew.

293 persons in one lifeboat and what chance of filling it properly should a ship sink quickly? Another example of profit before safety.