They even split them up when they were working on their 'personal' cases by TC declaring their friendship over when Magnum handed over the evidence in the ep he asked for help and Rick going to Icepick and whatwashername respectively in the ep he asked Magnum to get the money from the poker game back. It's really bad storytelling if by the end of the hour you've forgotten that this was not a case they were hired for but Magnum helping out his friends instead of the other way around.
I think it's the writing and production team, not necessarily the actor's choice. The show suffers from Morbus Lenkov.
They are getting shot, knocked out, hit by cars, stabbed, swimming for hours and whatnot and in the next scene, all is good. Same for emotional injuries. Katsumoto doing actual, realistic damage to his hand was needed in order for his boss to declare him too involved, otherwise they would probably have made the tree the losing party in that interaction.
Higgins is talking about a triathlon as if she could do it in her sleep, a few eps later she's not a good swimmer. I have several Iron Men and Women among my friends and can only say good luck with that, sister. At least Magnum was allowed to have some naval knowledge in the boat jacking episode.
The person being responsible for one and a half years of being in the enemy's hands is back and Rick is the only one with a (initially at least) senisble reaction? Oh, please.
I really don't think the showrunners want actual gravitas near their show. I stopped watching Hawaii 5-0 years ago because I couldn't stand the plot holes and there were characters in there that I don't want to see in my living room (*cough*Danny*cough*), but I genuinely like this cast, so I hope they don't screw up the potential the show has.
Three of my all-time favourite shows are Due South, Leverage and Psych. All three of them could be insanely funny when they wanted to and punch you in the stomach the next moment. Be more courageous, showrunners, we can handle intelligent and consistent writing and the actors might even have more fun with challenging scripts.
Not even her father was really grieving when she was dying. I was actually waiting for him to chew her out for endangering others to free him. How many died in the ep she first popped up in alone and how many dead did she leave in her wake off-screen? If her dad was CIA, he probably would be ashamed of her.