OK, I did a bit of testing. This occurs when the shared folder is added to my drive.
there is a menu option for that… Hopefully it shows up below.
The Drive sync from google will only sync these shared folders IF they are added to my drive. All it does is create a pointer.
What you may want to do is create an option to mimic this behavior. It should not be to hard as you are making a different set of API calls to get those files
