Personally i care more about immersiveness in a game like this. In all honesty, Dirt Rally 2.0 also didnt provide top notch graphics, but it ran smooth and it felt immersive to me. Ive allready seen youtubers going completely in depth on the trailers graphics provided so far. zooming in on tyres and the dirt coming off wasnt to their expectation or the grass next to the track didnt behave to their liking when a car passed. Personally i really couldnt care less when im racing a rallycar at 150kph past it.
Sure its nice when you get the best graphics available and perhaps it might give you some better replays, but other than that graphics arent that important to me.