Spielberg stated time and time again they wouldn't overuse CG. And I believe it. And judging from the trailer I still believe it. Most of it looked practical. It's okay to use CG for background compositions and whatnot, it's not like this is full of CGI monsters and lava planets. The stunt work looked great, the action looked great, and none of it really looked that CG to me. Of course they have to use CG for certain things, like maybe that huge blade spinning at their truck, but uh, if I were an actor I'd like that to be CG as well.
This does not look like over the top CG. It just doesn't. It's not an opinion, it's fact.