Nova / Park Run - there is a linkage there. They are usually the same type of runner. Look at a typical Nova event or the FLM and the presence of club runners makes almost no difference to them, it is just a token presence to legitimise a mass jog as being part of the sport.
The points you raise are fine - why not run for free if you can?
However, if you are a club member, often your club races bring in much needed funds that goes back in to the sport. Supporting coach and athlete development. Yet your race is "taxed" by the NGO by requiring it to be permitted. Some of the proceeds therefore go to the NGO.
In order to avoid this, ARC has been set up mainly for clubs specifically involved in road running and offered a cheaper system of insuring your races.
Our NGO then puts pressure on clubs not to use ARC by advising that all those races will be blocked from the rankings.
Park Run receives free insurance from our NGO and so the club races are actually paying for these Park Runs to be set up.
It isn't right.