It depends a lot on the type of sword. Some are optimized for slicing and the arts which use them reflect that. Others are more optimized for a hewing action and the body dynamics for those are very close to those for impact weapons (except that edge alignment is much more important, obviously). I’m studying German longsword right now, and hewing strikes are the standard. Slices are more situational exception.All of what you're describing is using a stick as a training tool. And sure, that works. But if you're using a boken or shinai to train, you're still using it (or should be) in the way you'd use a sword.
An impact weapon is most effectively used when the impact puts the energy INTO the target. Kind of like punching or kicking.
An edged weapon, most especially a short or curved blade, is most effective when used to slice the target.
Chopping is for sticks and axes. Slicing is for swords.
Actually, allow me to self correct. Slicing is most effective when you're swinging a blade. The actual BESTEST most effective use is to thrust.
Someone can come in with a bunch of slices, and it's common to stitch them up and wave goodbye. But a single good puncture wound, and there's a really good chance they're going to the OR.
There are reasons dueling was outlawed when weapons became less cut and more poke...