I did a comparison some years ago of the published displacements of a number of different cats across the ranges and Lagoon was consistently the heaviest boat in each, usually by quite a margin.
How much you can trust any of the published figures is an interesting question. It could also be that Lagoon is using "honest" weights and the others, aren't. Obtaining an actual weight of any given cat is actually rather difficult, since the travel lift
scales for the lifts needed to handle the beam often aren't accurate, either.
In many respects, it becomes a moot point if the sailing and weight carrying ability meets your needs. If it doesn't, then look at something else.