IMO, there is a major difference between being brave and being stupid. Paul was stupid when he directed the ship through the ice, putting the entire crew at risk, that was not brave.
On last week's episode when Paul had the ship going in circles, and then tried recovering the zodiacs while performing the maneuver, was not brave. All he had to do was come to a complete stop, it's not like the Japanese were going to do anything. But no, he was reckless, and hammed it up to the camera making it look like the Japanese were going to attack him, hence his reckless endangerment to his crew. Once again, not brave, stupid.
The crew, sans ex-Navy girl (though the jury is still out on her), are not trained for what they're doing, hence, they have no business listening to Paul. That's not brave, it's stupid. Paul even stated last season he doesn't want professionals, that's freakin' ludicrous!
Don't get me wrong, if the Japanese are doing illegal whale hunting, I'm all for someone stepping in, but a professional group stepping in. OTOH, I don't know exactly how I feel about whaling, because I don't know all the details, ie. if whaling certain numbers is harmful to the species. I know for a fact I'm not against fishing. Jesus ate fish!