I should have prefaced my comments to apply within a specific framework, that being:
- non professional regatta (not for points or pro- standings)
- regatta open to all levels of experience and boats
- bouy racing courses

I think these variables would encourage the PRO to err on the side of caution. If it's all pros out there, then have at it.

I don't personally think the PRO has to babysit people, but some of the legal decision in the USA seem to say that the PRO and OA will end up at least having to defend their positions against very shrewd attacks.