The Show Model Annotations should include a filter for better selections.
For example, if you want to show axis of a subpart inside an assembly drawing, you would need to click on the part in order to show up, instead of clicking the view. The view only shows the top-level datums, dimensions, etc. There is an option that specifies top-level or all. However, I think it should be more intuitive to users what they are selecting and what they want to show. For instance, controlling layers can be done by drawing, view, model, etc; where there is a drop-down. Here there is no drop-down. The only selection process that I am aware of is toggling through the mouse selection and clicking models/features in the model tree.