You can try and cut it what ever way you want,
not having ghosts won't drop you from a division 2 driver to a division 4 driver.
Somehow I expect we will see the same old faces at division 1, not milling around in Division 3 because they didn't have a ghost.
It's two runs, somewhere between 3 and 4 minutes. It's not particularly long, perhaps in one go, but It's split up nicely into two separate sectors.
Where you place in the GTP divisions will ultimately bare little relationship to how long/short track the track is, how fast or slow the car is, whether there are sector times or not, whether there is a ghost car or not. Where you place will have almost everything to do with how fast you are as a driver, and how much time you have devoted to this qualifier.
If you put the time in, you should be at the right level, ghost or no ghost. It's also worth remembering, that if you are slightly out sync relative to your fellow division members pace, the WRS admins may choose to promote you.