Control Windows 8.1 and WS2012 R2 "Update 1" and followings through WSUS?

Hello all,

Is there a way of identifying and stop through WSUS the new Updates (Update 1, Update 2 and followings) released for Windows 8.1 and WS 2012 R2?: http://blogs.windows.com/bloggingwindows/2014/04/02/windows-8-1-update-important-refinements-to-the-windows-experience/

As far as i know, the are identified as: "Update for Windows", so its impossible to know these are a set of updates similar to a "small" service pack if you don't check the KB number associated.

Due to my environment specs, I only make available Critical and Security updates through WSUS, so clients do not install set of updates such as service packs, which will jeopardize the environment.

These kind of updates are not classified within Updates, Update rollups or anything else, so is there a way of stopping them or at least make them more visible on WSUS (if this makes sense)?

Thanks in advance.