CA Patch Management describes KB2919355 as:
KB2919355: This Update is a cumulative set of security updates, critical updates and updates. You must install Update to ensure that your computer can continue to receive future Windows Updates, including security updates. For more information please see release notes.
Normally the Intelli-Rollups include all they need to patch a target system. However, in several of them KB2919355 is missing. What is the reason for that?
Patching management task on the computers becomes pretty difficult. If, apart from SP level, there are unmet dependencies not included in the rollup, a lot more management is needed. Also, two reboots are needed in order to patch each computer.