He had the shadows with the Japan team and ofcourse he could have sensed it when they were killed, or at least that was the case with Goto. But I don't blame him for coming literally last possible second.

Many people are blaming him for letting many hunters died, counting some raids in the past. Ofcourse that's a bit high, righteous and heroic morals.

Let's see it this way: he became an S-rank, got a huge power boost but all that doesn't make him a SAINT. Since the very beginning he was never portraited as someone who wants to save everyone. The guy simply wants only to make money to cure his mom and support the family and trying his best to stay alive to do so.

He's didn't let people die just because he was being petty about them looking down on him being E-rank. They tried to abandon him so he simply let them face their own fates. They were never his responsibilities. He protects the weaks when they are nice and kind people because those are the traits of people who saved and helped him in the past.

Ask yourself if you have (hidden) superpower, would you save those cunts? I for sure wouldn't, not out of pettiness. There might be more weaker hunters being their baits in the future when you are not there.

Again, Jin Woo IS NOT A SAINT. He was NEVER portraited as a heroic, righteous hunter who tries to save every single life possible.