I do think about that! Not as a specific counter to that trope, I don’t even know if they were aware of it, but I do think in a very straightforward way, Lupe’s homophobia was responsible for all the troubles Juls went through. Including Sergio. That was framed as a Bad Thing to happen to Juls. Something she didn’t enjoy, something that caused trouble with her actual love, and something that put her in the position of being kidnapped.
Despite how wild the premise and actual plot was, AAM’s still a lot about morality and karma. It is pretty wild that they framed Lupe’s rejection of her kid as this clearly negative thing and then Sergio as one of the consequences of that.