Nah, you get it just fine. That's what they were going for.
Remember neither Miguel nor Stefano ever dealt in this business at this level before.
He (Miguel) tried to punk her with the theatrics, but her father had already schooled her. Their (Lynwoods) job is logistics. Start then complete the job,and get that bag. Everything else is unimportant, and useless to their clients. Business, never personal. She (Emma) was probably disgusted by them (The Zetas), but remember she had just lost her father and brother violently. She was still shook. Just the same, her value is her business and it had to go on.
To add on, that scene personifies how cacs perfected the art of business by removing morality, emotions, or any thing else that might compromise an opportunity to make money.
This bytch lost her entire family due to their commitment to deliver on their deal. Survived numerous attacks on her life, performed all manner of bribery, including paying off terrorists to allow passage of her goods.
So after going through all this, she goes back to the sellers whom she had a long enough history with to be trusted with the transport of 5,000 kis. Walks through a yard full of bodies, sits right between the two corpses of whom she went through hell for, and hands $30 million to their murderer. And without flinching lines up the next deal
him. Folks talk about the phrase "business never personal" but this bytch truly lived it. shyt even took Miguel demonic ass by surprise.
Compare that with our folks that'll be quick to blow up a deal at the slightest sense of disrespect.
Oh, you sneezing during our meeting? Off with your head! .
This example is an extreme but still a lot to learn from. Folks being held back by morality, tradition, and emotion, meanwhile these ruthless cacs quietly accumulating resources off the backs and lives of everyone else.