Sasuke and Sakura are not argumentative with each other, and that's another part of what makes the couple appealing. To be clear, there's a difference between not being argumentative and never arguing. Sasuke and Sakura's first shown disagreement as adults occurred during Sarada's training in the Deepa arc. The family training arc gave Sasuke and Sakura heart-to-heart scenes showing the depth and maturity of their relationship as adults.
Sasuke and Sakura handled their disagreement exactly like how I had imagined they would. They're not the kind of couple who shouts and screams or throws blows at each other, or uses passive aggressive behavior or tries to guilt-trip their spouse into siding with them. Rather there is loving respect for their spouse, vulnerable sincerity, nonjudgmental patience, understanding, and the acceptance that though they are married, they aren't going to see eye-to-eye on everything.
I've seen complaints about when Sakura states that she's not strong like Sasuke is. Some fans incorrectly assume that when Sakura says she is weak, she is speaking about her physical ability as a warrior, which is not true (though honestly, who would dispute that Sasuke is stronger than Sakura when it comes to fighting anyway?). Sakura is saying that she is emotionally weaker than Sasuke (though again, would anyone really dispute that?).
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It's harsh to immediately dismiss Sakura's behavior as Sakura being pathetic and overly subservient to Sasuke. Sakura had every right to be feeling the way she did; her fear of losing her daughter on the field was real and something anything any decent mother would be emotionally struggling to cope with and overcome.
I don't see Sakura's behavior in this scene as being deferential or subservient to Sasuke; what Sakura is being is deeply vulnerable, open, and sincere with her husband, more so than she is around anyone else. To me, that's a sign of a healthy relationship, not an unhealthy one. Sasuke and Sakura are so trusting of each other that the need to project their usual tough or professional external façade fades away when they're alone with each other. Sasuke drops the tough guy act around his family, exposing his softer and gentler nature that is virtually unseen otherwise. Sakura is generally more expressive than her husband tends to be, but even she waits until she's around Sasuke to expose her innermost feelings and doubts. The couple's conflict in the Deepa arc highlighted this aspect of their relationship. It was abundantly clear that Sakura was extremely stressed and upset before her dispute with Sasuke over Sarada's training. Sakura put on a cheerful front for her daughter and pretended everything was fine around her co-workers and everyone else. It's Sasuke that she reveals her true fears, anxiety, stress, worries, and feelings of inadequacy to, as he's the only person she's willing to be totally sincere and trusting with. This is as it should be. Obviously the first person Sakura should want to discuss her personal anxiety with (especially when the anxiety is over her and Sasuke's daughter) and be willing to show honest vulnerability around should be her husband.
The beautiful thing is how non-judgmental they are towards each other. There's no condemnation or exasperation or shortage with patience with each other, just gentle patience and a shared feeling. Sasuke says that he understands Sakura's anxiety, because counter to Sakura's assumption, Sasuke is just as worried and stressed about their daughter as Sakura is. The difference is their coping mechanisms.
