Well, from what I can see, this is a balance issue.
Comparatively, the Hobie 16 hulls can be lifted with one finger.
I just removed the wings from my getaway, and the boat just became significantly easier to move on the beach. It also behaves way better on the water. I think beach wheel with cradle well positioned relatively to the center of gravity of the boat will help tremendously.
I just wish I knew what the Hobie designers were thinking when they created such a heavy 16 feet boat. The catalog should have a warning label next to the boat, seriously. I am pretty sure it would turn off many buyers.