I was just going off that NOAA page I linked that says that lists several concerns with them. You can read them yourself.

I've also seen some wild claims being thrown around that they can kill or confuse whales, that NOAA said there was no evidence yet for, just a lotta dead whales for unknown reasons. Almost certainly bullshit (claims of it being wind related), but to claim there's nobody bringing up complaints is odd.

Also, while you may not think fishing sustainable, the coastal towns that rely on fishing may still feel that disruption of their way of life and loss of jobs to be a problem, and even destruction of coal mining towns and the fallout there is used politically.