If they're saying the ship is irreparable, that means the engines are pretty much totally destroyed, as in 'melted/burned beyond repair'. Those engines are huge. You can't just open door on the ship and replace them. The ships are constructed in such a way that in order to replace them, you literally have to cut the ship apart to do so.
Imagine...a two-year-old ship, destined for scrap already. What a waste.
I wonder if they could anchor it somewhere, and operate it like the Queen Mary as a hotel, to recoup some of the loss.
“Full refund” - sounds like they’re actually doing the honorable thing.
I would think that if they can find a big-enough drydock, it would be a lot cheaper to cut a large hold in the side of the hull, swap-out the engines, and weld it back together than it would be to build a new ship.