I tested your install string and it worked as expected for me, the Lite printer was installed.
What OS are you installing this on? If it is older and doesn't have the XPS document printer installed it does prompt to install the XPS components - your unattended install may be missing that.
Regardless, can you log the install and send us the log please? Add to your command string
the only other thing I changed was to remove the KEYDATA and change /quiet to /qb because I never seem to have any luck using just /quiet