you should be fine, the content is located in your documents section, and the uninstall just goes for the program itself as default - unless otherwise instructed. Plus you really should back up as a precaution anyways!! No such thing as a fail safe computer system.
For your uninstall make sure you are online when you uninstall so the uninstaller connects with reallusion on the internet to credit your software count - the control panel uninstaller uses the software uninstaller so technically it's the same thing - just from a different approach. Your uninstaller should still be in your system, the other icons are just shortcut / links to the uninstaller.exe file.
aside from that, the RL guys are friendly, they will help you if anything went bad. RL is very supportive of their honest users, but these things are in place for users that like to exploit software - it's more like a checkpoint than a restriction.
☯🐉
"To define Tao is to defile it" - Lao Tzu