No, but usually they are trying to prove a point like ‘lazy solutions have great beginnings but don’t end well’. This time it was different and I might be living under a rock but never heard of weight loss drugs.
(Other comments: the character interactions felt wrong, Kyle was too willing to help Cartman, and Butters was too willing to help without being cajoled into it first, the shootout scene felt clunky and even gratuitous. It felt very low effort towards the end.)