They did not went for Lizzo as much as they riffed on the fact that rich people have access to unnecessary drugs poor people can't afford but still want because of how society makes us crave endlessly for unnecessary shit, and everyone tries to rationalize it any way they can.
Lizzo has nothing to do with crazy activist having her as some model of health (or does she ? i don't know jack about her apart she plays the flute).
The rich thrive in this unfair society and openly fucks with the poor i think is the point off that lizzo drug.
Of course there's the small part where listening to lizzo makes you shit through your ears but that's just SP humour
Anyway about the moral of the ep, there's a
Coluche (aka the god emperor of laughter) joke dating back to the cold war era which is basically a broader Lizzo joke. It goes : "some dude in the USSR looses his job and cannot afford to buy basic commodities for his family. Some friend tells him about a governmental bureau specially created to help people in this situation, with a phone number to call. The guy calls and a bureaucrat respond. The guy explains his situation, and the dude at the other end of the line tells him "don't you worry, just tell us what you need, and we'll tell you how to do without."