Luiz,

I would agree with that statement wholeheartedly - but - monohulls are a lot more solid by nature of their shape. A multihull crashing through those kind of waves would not be landing flat on all surfaces and the dangling entities (i.e. hulls / amas) and their connections would have to bear huge torsional and shear shock loading. Not to mention that the multi-hull is sailing considerably faster even if taking a conservative pace.

I think that a multihull is more susceptible to structural damage in those kind of conditions than a monohull (gasp). HOWEVER...a multihull is much less likely to completely sink than a monohull if something does go wrong.