If anyone reads that document, I think most of us would not be surprised to see the results. And
@Hardy Guy that's an important point - "Most anglers with any experience" - but there are roughly 250k licenses sold every year, and its pretty obvious that there are not 250k experienced anglers.
I think this work is important for the weekend warrior angler, or someone who may be new to the game, and not as invested as many on this site. Many of us here live and breathe this stuff, and so much of what they've "learned" with these studies is confirming things that the angling community has already learned through thousands of anglers and many, many decades of experience for many on the coast and on this site. The info from these studies are for the many anglers who don't share this collective knowledge that many of us have, because they aren't as invested.
You know who else doesn't have the collective knowledge of anglers? DFO. So, these studies are important to inform fishery managers that gear and methods can be modified within fisheries to improve release outcomes. Otherwise, we end up with the continued trend of over-regulation to account for the "precautionary" approach. There are more ways to reduce fishery mortality than turning on and off fisheries. Without empirical data, DFO won't have the option to listen.
DFO has already been in the tackle box to manage the fishery. Barbed hooks are not allowed to be used. Why, pretty simple. Changing practices around things like treble hooks is no different. There is a mortality effect. Plain and simple. Given the option, which would you rather have in your face. Pretty easy answer to me.
Smaller percentage points matter in fishery decisions now. If we can shave a couple % mortality off estimates that could mean the difference between fisheries opening and closing... I'd rather fish with a smaller single hook than not be fishing.