I believe that is not always the case and you can ask for things normally not returned to you. You should try!
There are two entities of interest in your case, current_status and current_status_update. The status_type equivalent I believe is the color in the current_status. That’s what I am using for my tools, and blue is the on hold.
The truth is in the code, so you can open up the source of the nodeJS asana lib in node_modules and see for yourself. I did not find it in mine, but I might not be running the latest asana lib, maybe you need to update as well.