I haven't completed even all of white maps, so I can't say much about the campaign yet, but it seems that they are typical Nadeo-styled maps. It is not a big disavantage for me, it's pretty enjoyable.
I'm not much of a fan of LOLs, traditional Speed-Tech (Speed-Drift on the other hand...) or trial tracks (RPGs are awesome, but Trial tracks are too short to enjoy). I guess this explains my mostly negative view on the campaign.
As for B07, it wasn't an official Nadeo track when I first raced on it.