Yeah, it did cross my mind that Sinaloa has diversified into a lot different other criminal enterprises ( like stealing gasoline, extortion, avocado theft, time share fraud, etc) and maybe they figured high profile outrages like overdose deaths were bad for business. But there is a huge profitable market for fentanyl so I don't see it just going away. Also, the cartels are far from monolithic. Even within a particular cartel, there would be differences of opinion about a strategy like that. And then there is the one Chapo son kidnapping the other big Sinaloa honcho and then surrendering to the US, That was opaque and weird