Team Skull was just a bunch of thugs, if anything the "destroy the world BS" has already stopped going.
Also Team Plasma wasn't exactly doing that either.
Sadly I couldn't get over Sun and Moons tutorials and challenges to fully progress the game enough (just gave up and was like I rather play something else), which I truthfully hope this game doesn't have any of that.
However if I recall didn't Team Plasma try to freeze Unova region to accomplish their goals.
Yeah Sun and Moon were dreadful games, so it makes sense you wouldn't have been bothered. But yeah, evil team were just some random thugs and I believe at some point their leader even helps you out if I recall correctly. That said, the story still gets a bit over the top, it just doesn't involve Team Skull at that point.
I guess Team Plasma trying to freeze everything in Black 2/White 2 is eligible for "destroy the world BS", yeah, but in the first game they were pretty much just going for a dictatorship takeover.