I don't agree. The OP makes it sound like it's a malicious backdoor installed by Ubisoft to get superuser access to a system. In fact, it's just a badly programmed way to launch games / any executable. To do anything else, you will have to find a way around the other security mechanisms, such as UAC.
I am in no way trying to say that this can not be dangerous, but it's different from what we would usually call rootkits.