Navigation should be improved, its often unacceptable.
1) Run on single select does not really run on single select each time.
2) Navigated action alters the viz, in case of data nulls,
3) Never ending loop is really messy and caused multiple arrows at a given time,
4) Stories can't be custom navigated,
5) Image, text box or dashboard object's navigation can't be done
6) Trigger for the appropriate action makes a selection, and you find yourself on that page a second time the selection is reverted the user will get confused for the navigation.
The addition of a purpose-built Navigation Action would make the experience much more seamless and intuitive for the end user.