Plus unless the skeletons isn't armed. cleaving it would be harder then you think. Much easier to bring down something heavy on it's skull shattering itl. One clean blow that takes far less force.
I happen to not claim, I happen to KNOW. I also happen to know historical manuals describing how to use a sword. And I provided you a link with a video with a blunt european sword cutting the same kind of targets used for katana cutting tests (which are used because their characteristics are quite similar to human limbs, including the bone). You obviously fall for the usual claymore/katana mythology which has little base in reality. Not the least, a lot of claymore blades (or what is considered a claymore by laypeople today) were actually made in Germany, exported to Scotland and provided with the typical fittings there.