Without any prejudice to what has lead up to these discussions and disregarding any recommendations, I believe that the management of motorcycle road racing needs to constantly be reviewing the situation.
As Helen has reminded us, the fantastic speeds now being reached by our Heros leave only micro seconds to recover from nasty moments so accidents are bound to happen.
We have all seen the gradual tightening of scrutineering standards and we welcome the safety lead ones.
Marshals are like Air Traffic Controllers, working in a "Three Dimensioal" world with an ever changing situation. Most (all)incidence are unique, demanding split second decisions and immediate communication with others, be it debris on the track or an accident.
I have studied the contents of the TT Marshals web site and applaud the efforts of that dedicated bunch of heros. Although much effort is put into training, I believe that what Helen said about a wider catchment net is really needed with off season "mainland" training sessions and acreditation. Funding is another question. I don't think that many applicants would seek rewards, some may just need a contribution towards expenses.