While it is factually true that it would be illegal for Purdue to promote off-label, they also need to be held accountable for playing fast and loose with the research studies (even altering the definitions used in the trials) in order to be able to claim 12h coverage when nearly half the patients weren't getting 12h coverage. This, combined with the recommendation to push higher doses to achieve 12h coverage, combined with the gap in coverage, drove a lot of people into a cycle of unhealthy and deadly dependency.

At the very least it's a case of consumer product safety liability and negligence fueled by profit motive.