I've ridden Laguna several times, both when Lance Keigwin and now with Szymon. Both are excellent and ran very fun and smooth track days.
You can't really do much in that turn anyways because the sound booth is right there where Kim crashed. Maybe he tried to pass, realized the sound booth, adjusted for that but didn't continue to commit his line.
I did a sound check with my 1199 S with a stock exhaust and it barely met the sound requirement of 92db. During the rider's meeting they address the sound booth and 3 ways to get past it:
1)Short short shift after T5
2)Roll off the throttle after T5
3)Keep your gear and stay towards the left hand section of the track
They also have db rule.
1)Aftermarket exhaust wout silencers-1 black flag and you'r done for the day
2)Aftermarket exhaust w/silencers-2 black flags and then you're done
3)Stock exhaust-3 black flags and you're done
However, I do understand the danger of having those sandbags there. It's groomed during a regular race so why wouldn't it be groomed for track day events.
Those who have rode Willow Springs also know that Turn 8 through T9 is not only the fastest part of the track but has an extremely horrible run off area. You do not want to wash out there doing 150 mph because once you're off the pavement it's filled ruts from soil erosion and you'll go tumbling like a rag doll.
I remember going up to Dustin Coyner of TrackDaz back when WSMC was still club racing there and telling him about how ...... that T8 run off is. He brought it up to Bill Huth's attention but has never been fixed in the 14 yrs I've ridden Willow Springs.