Every scenery is of course different, because it's a complex relationship between the location, the shape of the objects and how the coordinates "snaps" to the lat/lon quadrant the sceneries lies in. And, of course, how the autogen is installed.
You can simply bet, we try to exclude as few autogen is possible, without creating to complex objects subdivisions, to save fps.
Why don't you simply try it yourself ? That's the whole point of having a Trial version...
However, the problem is not really apparent at PHNL, also because it comes with its own additional trees, but mainly it's how the default area it lies in is made.