I was on the track at Puke when that happened, maybe 1/4 track length behind the Honda. Most of the time the days are incident free but I have often seem crashes. I have pics of an S2000 that hit the wall coming over the hill at the exact same spot from late last year. Lots of fun but some of the people there cannot drive worth squat. MHO.
At my first track day there I was told "no over taking in the corners" - first thing that happens - some nut job in a white civic comes flying past me into the hairpin, tyres locked up and smoking away, over taking in the corner.
If you go to a track day you do it at your own risk - regardless of who organises it.