Seems to me he tries hard to weigh the pros and cons but ultimately concludes it's 'no contest' on the basis of comfort, as follows:
"Letís face facts though. The catamaran is more stable by a factor of ten thousand to one (note: must check source on this statistic). And thatís really about the only thing that has to be said. It has other factors in itís favor of course, but when it comes to picking a cruising boat there really is nothing as important as comfort. Nothing in my mind contributes more to the enjoyment and success of long-range long-term cruising than a stable platform."