This is bad news to those who keep claiming DRM is irrelevant (and backing up your purchased games is stupid) because you can always download the stuff later on torrents, if the DRM somehow blocks you from using your license.
As I have been saying, piracy is becoming more and more of a hassle, not easier, over time. ISPs actively blocking access to known pirate sites, your internet connection being affected even if you are merely suspected of copyright infringement, the devices we are daily using for accessing internet becoming more and more walled gardens where you can't even install unauthorized material, etc. That's why I never bought the argument that in the end, piracy is always the answer.
Tychoxi: what if I download something I have already bought? is that illegal?
This is not really about what is considered legal or illegal; it is just you (repeatedly) being caught, or at least being suspected, of doing something that the ISPs/copyright holders don't approve, and which can have consequences to you.
For example, swearing in a web forum is probably not illegal (in most countries anyway). But that may still have consequences to you, like being banned from the forum.