Every time I return to Lfs I always notice how everything seems to be all of a piece.
Although I would really like to see mod routes,
I somehow think that it could change the character of the simulation too much.
I think the whole thing is a bigger risk than the cars.
If LFS had relied on modding from the start, I'm sure we would have a different product in our hands today. But that doesn't always mean better. The support would definitely have eaten up at least 20% of your working time. Lfs is so finely tuned, even to this day it feels very special among all simulations.
I see all of this as being at serious risk. Don't get me wrong, I love mods.
But this feeling that everything is one piece would disappear and with it perhaps some immersion and credibility. Even if you could drive on the Nordschleife, it would look different in style than the rest.
And that's exactly what I hate about AC, there are a lot of fantastic racing routes, but the balancing act is so broad in the form of presentation that an overall identity is missing in the end.