I agree with you on the law, but I don't see the tackle shops being responsible. It's up to the state, and now they have data on every saltwater angler that should be doable. They also need to use their social channels to help inform this uniformed group.
This generation is all about the photo or video. They are very conservation minded, as I've found of most anglers, and will do what's right.
I do wonder how an eco can prove what they are targeting, but it's simple to see a photo on Instagram that a person is in violation of possession. I think these these sharks are very Hardy, but the law is the law.
Can't even begin to understand how do you "target" a few specific species of sharks, when you're shark fishing, you're shark fishing. So if you catch a protected species you just have to release it as soon as possible and you're in compliance.
There is one thing you shouldn't be doing since it's pretty specific for Great Whites, and that's trolling seal cutouts, but beyond that, shark fishing is shark fishing.