I found this container ship trimaran in Pacific Maritime magazine. KNUD E. HANSEN A/S was design office proposing these con/ro ships. By eyeball it looks like that would be too much weight to get in under 1/10 magic fineness ratio on the main hull. And I can’t believe that those tiny amas so close in would help much in a beam-on wave situation. it sure seems like a catamaran would be a better choice.
My guess is that they have dynamic load stabilizers (similar to canted keels but internal). Or… maybe they wished they had. On the website everybody wears blindfolds (VR glasses).
https://www.eskimo.com/~mighetto/murrelet/Wordpress/archives/792
http://www.knudehansen.com/key-services/stability-engineering/
Kind of reminds of the three float pontoon boats in the things done wrong category.