One happy note here...

The PRO does not get in trouble simply by running a high wind event. The OA and the PRO have to make a mistake to get some portion of the liability. (that is what your on the water insurance policy for race management covers anyway).

This is where safety guidelines can bite you... If courts and juries view guidelines for catamaran racing as a standard... and your event does not meet the standard... It would be ugly.
I don't know of any cases where this has been tested tho.

So for adult regattas... you have mark boats on the course... You never have safety boats out there.

With juniors out there.. you have a very different situation and I have not run one of those at this level of organization. My hunch is the guidelines get elevated to standards.... (that seems to be the case for the upcoming Annapolis Yacht club JO's and Hobie 16 Jr North Americans)

.... As I said... for the good of the sport... the adults give some things up to include the juniors at the regattas.