Dauntless; glad you said it before I did. It has happened. Way back in the late 60's I foolishly got out of the Coast Guard for a while and worked in a ship yard. Among many other things, I was a helper in doing ship inclining to determine stability. Of course these big ships are tested and an inclining
experiment is required for the ship to be certified by whoever is the certifying body. And yes that's a lot of sail area. 45 degree roll, not likely, unless they had an inclinometer to measure it. A coast Guard ship I was on took a 47 degree roll (Measured) crossing the
Columbia River Bar, and that was incredibly scary. But our ship was designed for that. I don't believe a big
cruise ship could recover from a 45 degree roll. Probably in the 20s, but on a big ship like that with chairs and tables , and people, sliding around it may have seemed like 45.
Been on three
cruise ships, 2 small ones (they were fun) and one big one. It was not fun. It was a
cruise to nowhere gambling ship. Someone died and they had to return to port. You can't get me on one of those big things. They are just giant floating hotels and disease incubators.
And I might add that with a big ship with that much top hammer, they don't have a lot of reserve stability and if they roll they reach a point where the righting moment becomes negative and they just keep rolling over. I am just guessing but I would bet that's somewhere between 25 and 30 degrees.