Which wouldn't be surprising because artistic expression is generally treated differently from political advocacy. For example, calling for concrete acts of violence is in most jurisdictions illegal while the bar for fiction that glorifies violence is quite a lot higher. Same would presumably go for say a fictional work that could be interpreted as giving bad medical advice compared to someone trying to pass as an actual medical professional on a podcast.

edit: here in Germany for example neo-nazi propaganda is pretty much banned, but Triumph of the Will is not. In particular if it becomes a historical time piece which old school gangster rap almost is, it isn't comparable to calls to action.

As a huge fan of rap music in general, I think there are many songs which promote illegal activities.