I believe you’re right but I don’t trust them.
The fish you buy is one example. Order a grouper sandwich in a restaurant and there’s a good chance its not really grouper. That shrimp you ordered may not have come from the gulf but instead from one of the slave labor camps in Thailand that feed the shrimp garbage and pollution.
A local journalist recently tested local restaurants claims on where they source their food. Out of ten restaurants that claimed to buy from local producers only one actually did. Most of the vendors/farms named in advertising had never done business with the restaurants.
I agree, which is why we rarely eat out. There are a few restaurants in Pittsburgh that we go to on rare occasions; however, chains and any place I don’t trust is off the list.