The Lutron dealer should be programming the blinds into the QS processor and then activating them to the processor. When that is done, the blinds will now each have their own integration ID, which Control4 can use to send and receive information to the QS processor to control/monitor the blind. If you're attempting to discover Lutron QS devices from Control4 and these new blinds don't show up, my suspicion is that the blinds did not get added to the QS processor.
Get the Lutron dealer to confirm blind operation from their QS processor (even without Lutron controls, they can test/control the blind from their QS programming software). If you happen to be there when they do the test, ask them for the Integration Report from their software. The integration report includes all the integration IDs for the various devices that you can then plug into Control4.