I am working on finding out for certain why we have the detection set up this way for this patch. I'll update you when I know more.
The detection for this should be correct - you should apply the patch.
Our data content team provided me the following explanation about why this differs from the 'Applies to' section of the MS KB article http://support.microsoft.com/kb/2836941:
At the time of release we bundled all June and September .net non-security updates into that one bulletin(MSWU-765) instead of breaking them out into 10 different ones. Since only one kb can be listed per bulletin (within Protect XML) it references just that one KB. In reality, this one bulletin contains multiple .net kbs.
I apologize for the confusion, and I hope this helps.
Thanks for the help.