It looks like this is being delivered as an “optional update” through the normal Windows Update and Microsoft Update channels. This means that in addition to deploying the KB directly as a standalone .MSU file using the instructions at the link you posted above (using the standard BatchPatch deployment method), you can also use the normal Windows Update actions in BatchPatch to deploy this, but you’ll have to first go to ‘Tools > Settings > Windows Update’ and check the box for “Search for only optional software updates”
Correct. If you leave it set to “Search for only optional software updates” then moving forward it’s not going to find any regular updates and will only find optional updates, which generally we do not recommend installing except in cases where you specifically need one like you did in this particular instance.