The updates that can be uninstalled, which you are talking about, would revert you back to a prior technical preview build. They are actually full operating system / kernel upgrades. So when you download the latest preview version, and install it, you are essentially upgrading to a new version/build of Windows. These are expressed as the uninstallable KB numbers you are seeing in Programs -> View Installed Updates. The updates in Windows Update seem to be more security related and cannot be uninstalled or they have been superseded by the latest November kernel update / preview build.
KB3016725 is a "package". The package includes ...656. Except for occasional "kinks" in the system. The History Dbase only shows the Package number. The "installed updates", shows the updates within that package as well.