The corkscrew is even steeper though. Its practically a cliff.
However, the champ cars run there and they are just as low on the ground as F1 cars. I think they could happily go over it, it would just be a slightly different line they would need to take!
One thing that worries me a little though is the facilities. I dont mean in terms of fans, they can easily accomodate 90000 people there, as they do for WSBK and will do later this month for the Moto GP. However, the paddock area isnt the biggest, and i dont think there are any real permanent garages.
Also, more worryingly, the walls are often very close to the track. With the cornering speeds of F1 cars, and quite a few fast corners with very little run off (turns 5 and 6 particularly) it would need alot more air fencing and such should F1 go there. Its definately a track that needs to have a GP anyway.
On the topic of tracks that should have GP's, we need F1 at Kyalami, a wonderful track, which also has a very good heritage!