The decision in question was in a civil suit. The suit was brought by a "privacy watchdog" organization that's presumably at least partially government funded to investigate cases like this, but that doesn't prevent anyone else from suing as well.
So if you know of a European company with similarly privacy-violating practices, what's stopping you from filing suit? Or if you're not an EU citizen, you might still be able to get some less corporate-friendly group to investigate.