Oh, I liked the reboot season. That's one of my favorite seasons. I'm weird about Do America, aside from some gags it didn't do a lot for me. South Park Movie > Do America.
I am not optimistic about the new seasons on Paramount+.
I did forget about the South Park Movie which is the GOAT, as well as Star Trek 2 Wrath of Khan. It's pretty surprising how rare proper (same cast & creative team) tv to film adaptations actually happen. On the top of my head and not a ranking:
1. Beavis and Butthead Do America
2. South Park: Bigger, Longer, and Uncut
3. Star Trek films
4. X-Files: Fight The Future
5. Batman Mask of the Phantasm
6. Bob's Burgers: Happened 5 years too late
7. The Simpsons; Happened 10 years too late
But yeah I adore Do America, I love how serious the plot is taken with Demi Moore and Bruce Willis giving great VAs. And Robert Stack is so good as the government agent whose only real running joke is his obsession with cavity searches. Do America in my eyes works so incredibly well because the Political Thriller plays itself quite straight. So when the story goes back to Beavis and Butthead I just am ready to laugh at their stupidity. It also helps that Mike Judge directed a pretty beautiful movie with great sequences. I love how it brutally mocks Vegas in this sequence, just a dumpy tribute band playing to an empty audience while a bunch of old people gamble away their savings mindlessly. And of course B&B are enamoured with a big tittied statue.
To me Do America is just how you do a Buddy Road Trip movie. It's Mike Judges satire at his highest, it's sharp mockery of America but Mike Judge never betrays how clearly he loves this nation.
But anyway Do The Universe's plot kinda slumps for me because it never pretends to the viewer that it's anything more than a silly movie. The Smart Beavis and Butthead scenes kinda fall flat for me after their first appearance, honestly think they could have had the other incarnations of B&B interact with our heroes. And yes as you noted huge missed opportunity to not have them meet their old friends, like a middle aged Daria could have easily been at the college. We could have seen an elderly Van Driesen lose his shit that his two worst students are back in his life and virtually unchanged since he last saw them.
But as I said before it's just good to see them again. I was a little harsh earlier about the reboot season I just think the new music video segments for that season kinda sucked.
Still at the end of the day one virtue Mike Judge has is that he never Flanderizers his characters. These are the same Beavis and Butthead that would play Frog Baseball.
I just hope they paid Judge enough money to devout his full time to Beavis and Butthead. Please don't reboot King of the Hill, it'll never be the same without Brittany Murphy. And swear to God I'll burst a blood vessal if Hank is anything beyond a moderate Republican and Dale Gribble is an Alex Jones nutcase.
Edit: At the end of Do America Beavis asks Butthead if he ever thinks the two will ever score. Butthead of course says he will but Beavis won't. It's a sweet way to tie the two movies together that Smart Beavis actually scored. I hope that at the true final ending the great duo finally do score.