Once upon a time when there were actual clubs (more than one), the A & B graders took a D grader under their wing.
A racer who had competed at National Championships, Bathurst etc and had years worth of racing under their belt.
All of this knowledge was passed on at club practice days. "You want to enter the kink here" "on the grid you want to work your way over here".

I've had conversations with a former A grade & international l racer who said if wasn't for their mentor, they would never have achieved what they did. When this person improved and started to master the arts, they were assigned a D grader to complete the cycle. This was all done by the club.

Don't put it on MA. There used to be 6 clubs in Sydney who held "practice days" at Oran Park and Amaroo. Now days there are more racers, less clubs, less circuits and more incidents. Unfortunately it falls back on the clubs and there is only one that we're all members off as the rest have fallen by the wayside.
Any club or union is only as strong as its members.
Instead of pointing the finger, maybe we should be looking inward and asking "what can I do?"

Perhaps we should be championing our cause with St George instead of MA and asking for a mid week practice day where people congregate and share their experience? The club would have to pay for it and would nominate a set cost for the C & D graders. A & B graders would be offered a "minimal cost" practice day if they agreed to take on and mentor a lower grade rider. The realistic view is A & B graders would pay the same amount but offer their advice to up and coming racers who could do with a quiet word.

It's a club. We're the members. Can we collectively make racing safer by imparting knowledge?

(Insurance would remain the same if everyone had a race license and all participants agree pit lane advice is indicative, not literal).