Big airport, lots of stuff modeled beyond the airport, and the ortho is very big as well, which is required to cover all the massively outdated aerial imagery in the simulator. With an airport that has been a construction zone until a few months ago, that’s inevitable.
Even google is very outdated, not to mention Bing that must be eons old from what I could see.
Most scenery reproducing airports of this size stop at the border and leave everything nearby out. I much prefer what has been done here, with a lot of surrounding landmarks modeled including the whole highway network. The scenery isn’t just important for parking and taxiing, but also for approach and take-off.
For me, the positives far outweigh the negatives, but to each their own 
Parked aircraft were off (I just hate how random they are). There are AI planes taxiing around, but it was mostly recorded at night, so you won’t see much traffic. It does get quite lively during the day.