I chuckled up every time they said "Bruh", don't know why but the inflection of the perfomance just got me (I think it's actually a sound clip from a meme but I may be wrong).
And I think it's indicative of this being an episode that simultaneously ridicules teenagers while actually trying to understand them. Usually when shows like this poke fun at the current youth it's very basic or out of touch.
Like "omg look at what teens are doing now, isn't that so weird fellow adults?? Kids are really stupid these days". But Matt and Trey simultaneously seem to get teenagers while showing how grating and exhausting they can be. The entirety of the "Bruh" joke summizes the latter aspect.
It also comes across sympathetic to teenagers and what they go through. It makes a lot of jokes about how they act so dramatic and despondent but genuinely feels like it comes from a place of how hard it is for parents trying to understand their kids but also the emotional turmoil that being an adolescent is.
Also the premise is classic south park. Just utterly ridiculous and hyperbolic. While having an even deeper message about the perils of raising teenagers. So many comedic and emotional layers, with a heartwarming ending.