Firstly my condolences to those involved in and affected by the accident.
I have done four track days with No Limits this year, three at Cadwell and one at Oulton and have been using them since around 1997. They are very well organised and run an efficient and friendly track day.
Sunday Roast's comments are at best ill advised.
I wonder if it is only 10% of sports riders that do or have done track days - I doubt it.
I have seen more stupidity on the roads than I ever have on track days. I have also heard the lame excuse from people for not doing track days, "What if I fell off?" My answer to them is that if you don't trust yourself on the track - then what are you doing riding on the road....?
I agree with other's comments about mutual respect and I would extend this to my experiences of racing too - compared with riding or indeed driving on the roads.
Many years ago I arrived on the scene of a very serious RTA (overturned car with unconscious driver hanging out of the back window still fastened to his seat) and it was 45 minutes before the fire services arrived, then the police came and after almost an hour an ambulance finally arrived.
On a track day, for a more serious accident the session is stopped very quickly and an ambulance is on the scene within a few minutes and you have an on site medical centre.
This is one of those unfortunate things that can happen from time to time in potentially dangerous sports. Let us hope that something can be learned from it but that it does not lead to some knee jerk reaction in terms of regulations and / or insurance liabilities.