The main problem with trying to do this is that there a lot of different ways to use fields. get_field() is only one of the functions available and that does not help you with what is actually returned. What if the field is a repeater sub field. What would be shown if that sub field is an image field.
Also, unlike some other custom field plugins, there are only a few functions in ACF that will be used most of the time and the parameters for these functions are the same across all field types. I think that Elliot has done a great job at keeping the template code that need to be written to get fields extremely simple.
