Compare to Windows where it's called "Cut" but is really "Copy and mark for maybe deleting if you paste later". It doesn't remove files when they go to the clipboard (which is what cut does literally anywhere else).

And then Paste becomes a destructive operation that deletes your original files, or if you prefer, paste turns into "Move Item Here."

They've taken two different approaches to avoiding accidental data loss by overwriting the clipboard, but I wouldn't say one is inherently more right than the other. Windows makes new actions but has the interface pretend that it's doing the same thing as normal cut and paste. OS X makes the UI less standard, but describes what's being done more explicitly.