You're aware of some of the issues involved in projects like this. I'm curious to know whom the majority landowners are in the affected area. Wouldn't surprise me that some out of state corporations own that land. Even if not it's likely property owners are pitted against shrimpers, oyster men, etc. And then you have the agencies:
Corps
USFWS
LDWF
DOTD possibly
Railroad possibly
NMFS
Levee Board
Probably others
All with their own priorities and focus
And then the project has to be funded/cost shared
Sometimes I'm surprised anything gets done at all. I do agree more could be done with respect to sediment transfer but....but....but.....