Ofcourse, all the previous CMR's had differing stages, this started with Dirt1 when they figured out that people are so ignorant that if you tell them its 12 stages, they will really think it is 12 stages.
Sure, making such detailed stages takes time, but in year '99 when Rally Championship 2000 came out, they made quite a selection of stages, each unique, each based on real maps and properly long, 10min+ stages. Back then, they had to maybe sacrifice some of the graphics to make the epic tracks work but nowadays its simpler to make everything look good and hand it over to sheep.
Not saying that DR is bad, quite the contrary, it's the best damn rally game as a whole packet but id desperately needs more tracks.