With the node module, there are a lot of modules which extend the node which features doesn't know about. For example the pathauto module adds to the content type but the parameters are not exported as well.
The 1st patch adds a new hook_features_populate_alter() which allows the $more to be altered and additional dependencies added.
The 2 other patches since the additional parameters are just variables, using the strongarm module they just add the variables to the pipeline so strongarm will pick these up and add them to the feature.
Since these are just variables adding features support for auto node title and path auto is only a few lines of code.
This also means that the modules implementing the feature do not need to directly know about the dependencies, and modules like cck could actually handle the addition to the pipe itself instead of having the code in the node.