It's hard to to factor in all variables, so props to the race officials for looking at contingencies. The wind isn't a problem, it's the tide, so the guys are ensuring the best paddling conditions for the beginner level paddlers.
This is an entry level event, so the course has to be "easy and enjoyable". The best option will be selected by the guys on the day.
Another example of SUP races for SUPers by SUPers ...... No testosterone decisions here ladies!