While none of the characters in Beavis and Butthead were smart, a lot of the humor really was, even when it was being stupid. I'd argue that B&B generally avoided easy jokes. An easy joke is an obvious joke, and SV has made plenty of those. It's when it shocks us (my favorite moment still has to be when Erlich beats a kid for Adderall) that it's good. The root of humor, after all, is surprise.
I feel like the show's pulling in two opposite directions- one is an attempt to bring Office Space satire to the modern tech scene. Absurdity rooted very solidly in a mundane world. The other is an attempt to blow the already weird real-world Silicon Valley up to its most absurd caricature. I don't feel like these two goals are truly compatible.