The average pirated install is blocked by the pirate from network access so there’s no way for it to dial home to be approved or denied, or for them to know it was installed to begin with.

edit: The main exception would be GOG pirated installs since they’re usually the original installer with no DRM to be bypassed, but they can still be blocked from contacting home if you don’t care about cloud saves or online features.

There’s always a way to screw over company plans like this.

edit2: actually GOG cloud saves aren’t even possible with offline GOG installs, legal or not, you have to install them through the GOG store and launcher for it to be an option.