B&B, South Park & Simpsons ALL have their hilarious moments, and during other times, their 'less-than-hilarious' moments. Gut-busting comedy is impossible to sustain non-stop for 30 minutes.
No sitcoms can do that, so why would anyone expect the same from these cartoons? (Heh-heh ... I said "Would"). All 3 of these cartoons may be obnoxious at face value, but underneath, they throw occasional daggers at various people & groups in society -- pretty much, everybody.
And thanks to shows like South Park & Simpsons, holier-than-thou populations can be brought down -- or shot down -- to Earth for some humble pie.
In B&B's case, the absurd musicians & bands reaping the 80s-benefits of MTV-boosted popularity & fame were badly in need of humility, so B&B's music videos segments took aim & hit targets fairly well.
The first critic (not the original) was right -- the music video segments were the best part, especially when B&B railed on big-hair 80s-glamour-rock bands or on pseudo-tough rap artists (Beavis: "Snoop Dogg's in da howse!").
More importantly, B&B did exactly what MTV should not have allowed it to do -- serve as a reminder to the general public that the entertainment industry -- and entertainers themselves -- only exist in some distant land, across a chasm of hypocrisy & self-preservation. And they only appear on MTV & other channels humanizing themselves to increase revenues for all parties, boost album sales, & generate concert attendance.
In essence, B&B shows us -- teenagers in particular -- why musicians & artists should be admired, but never worshipped (as per Elvis & Beatles of previous generations).
OK -- maybe the story segments of B&B & the other shows sometimes blow chunks. But compared to vanilla-white sitcoms like Family Matters, Cosby, Full House, Everybody Loves Raymond, and so on, what choice do we have? Urkel vs. Beavis? Don't bother asking.