First thought is a thoughtful thought.
Here is an active link .Ventura reef
how far out is the Ventura reef proposed to be?
It looks heaps and in very deep water?
I wonder if there are any feature's like that on the US west coast that show (as part of ongoing geomorphology )
a protected protruding sandy shoreline?
I have reservations about thinking we can fast forward geomorphology to do the same.