All Microsoft security patches and major updates are covered in the “Patches for Windows” sites. Other patches from other vendors are covered in the other sites (Mac OSX, RHEL Patches, Updates for Windows Applications, and so on). It is not expected that BigFix will have every non-security MS patches.
We are planning to cover KB969898, and the content is currently in development. Please note that since this is not a high priority security bulletin (as opposed to security advisory), BigFix does not have a set release schedule for ActiveX Killbit and similar content. You can expect to see content for KB969898 within the next week.