I would agree with that last statement. I have a 5 year old Yakima Skybox 21 and a 35 year old Yakima Rocketbox. Both owned since new. The newer Skybox, which is rarely used, feels flimsy and I have never trusted the latches, choosing to back them up with a cam strap around the box. Can’t tell you how many cars I have seen driving down the interstate with the box popped open and scattering the contents.
My ancient Rocketbox, which has been mounted consistently on a Land Cruiser since 1985, has never had an issue, never developed a leak, or opened when I didn’t want it to. Older is better in my experience.