To clarify, you may still be able to connect it, it is not fully supported though, and certain features will not work. I believe one of the primary differences is the lock cannot report the user who opened it. So user-based automation and notifications would not work. Functionality takes a hit and Alarm.com cannot support the device or provide troubleshooting.
You can find a list of Alarm.com supported z-wave devices here. Levers are included in the list.