KB3016725 is also a kernel update. It does not appear to be part of regular Windows Update necessarily.
Here are some details on what this updates:
KB3016656 : 6.4.9879.2 / 6.4.1.0
Microsoft-Windows-DFSClient
Microsoft-Windows-GroupPolicy-Base.Resources
Microsoft-Windows-GroupPolicy-Base.Resources
Microsoft-Windows-GroupPolicy-Base.Resources
Microsoft-Windows-GroupPolicy-Base.Resources
Microsoft-Windows-GroupPolicy-Base
Microsoft-Windows-Mup
Microsoft-Windows-NFS-ClientCore
Microsoft-Windows-OfflineFiles-Server-Core
Microsoft-Windows-OfflineFiles-Core
Microsoft-Windows-OS-Kernel
Microsoft-Windows-RDBSS
Microsoft-Windows-SMB10-MiniRdr
Microsoft-Windows-SMB20-MiniRdr
Microsoft-Windows-SMBMiniRdr
Microsoft-Windows-TerminalServices-Rdpdr
Microsoft-Windows-WebDAVRedir-MrxDAV
Microsoft-Windows-GroupPolicy-Base
Microsoft-Windows-GroupPolicy-Base.Resources
Microsoft-Windows-GroupPolicy-Base.Resources
Microsoft-Windows-GroupPolicy-Base.Resources
Microsoft-Windows-GroupPolicy-Base.Resources
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 The updates in Windows Update seem to be more security related and cannot be uninstalled or they have been superseded by the latest November kernel update / preview build.