You're correct. Apparently this was actually an attempt to revive it. The Bloomberg article that the TechRadar articles is based on makes that clearer:
> Apple Fails to Fully Reboot iOS Simulator Copyright Case (1)
> Apple Inc. failed to fully revive a long-running copyright lawsuit against cybersecurity firm Corellium Inc. over its software that simulates the iPhone’s iOS operating systems, letting security researchers identify flaws in the software.
> The US Court of Appeals for the Eleventh Circuit on Monday ruled that Corellium’s CORSEC simulator is protected by copyright law’s fair use doctrine, which allows the duplication of copyrighted work under certain circumstances.
> CORSEC “furthers scientific progress by allowing security research into important operating systems,” a three-judge panel for the appeals court said, adding that iOS “is functional operating software that falls outside copyright’s core.”
