So what your saying is that the entire crew can talk as much trash about the captain, not be responsible for the captain, and bring drugs onto the boat. They were also blue crab fishing, IIRC everyone was struggling to get the large amounts of blue crab. I also do not see how saying their father did a huge injustice means talking trash, maybe we have different definitions of that, Phil and Derek were friends for a long time, close friends from what I could tell from After the Catch. It was time for Freddie to move on, how do you know that he wasn't tired of Jake and Josh's antics?
Derek didn't catch enough blue king crab to buy fuel, in three weeks. He didn't produce, period, plain and simple. He blamed the crew, when he called the pot location. Derek was too busy trying to play "pot police" (I hate pot, by the way, more than 90% of people you'll ever meet, it has no place anywhere, never mind on a working boat) to try to catch crab. He failed to catch crab. Sorry, 10K pounds of crab a week ain't getting it done. Three weeks, and he didn't make enough money to buy diesel, and buy groceries, the crew didn't get paid at all, and the boat lost money. He wasn't struggling to catch large amounts, he wasn't catching anything at all, the guy never pulled a string of double digit pots. He came on a top five boat, and didn't catch crab. He blamed everyone but Derek. The 29 year old green horn captain caught blue king crab, but Derek didn't. That's called failure to produce. So no, everyone fishing for blue king crab didn't fail to produce, apparently, no one failed as bad as Derek.
The crew is not responsible for the captain, it's the captain's responsibility to catch crab, and keep the boat safe. The crew has the responsibility to follow orders. They set pots when and where he said, they pulled pots when he said. The pots were empty. Derek wasn't man enough to accept responsibility for all the empty pots, he had to go on a witch hunt instead of running the boat. Derek wasn't the one who put out $160K to go crab fishing, the Harris boys and Mrs Devlin did, apparently it was mostly the Harris boys, maybe the last of their money.
You don't fail to produce, and then scream at the guys who hired you, and expect to keep your job and, have respect. And you don't
demand respect, you
earn respect. Pushing people around, bad mouthing people, and failing to produce won't earn you respect or cooperation. Regardless of what he as done before, Derek was a total failure on that trip, and refused to accept any of the blame.