Realistically, if Riftan wants to protect Maxi "from herself" kinda and how she rushes into situations that she doesn't actually know how to handle, he needs to give her an actual position and job in these scenarios so she can feel of use and busy while being out of danger. Because as she has shown, when left to her own devices, she has a tendency to get in over her head due to her lack of experience. So logically, she needs to gain experience from a safe distance to avoid these situations.
I won't lie, this is still controlling behavior but when it comes to violent and dangerous situations, he is the commander guy so it's appropriate.
But he also has to drop that control when it comes back to their everyday lives and allow his wife to leave the house. Riftan has wayyy too much anxiety in this regard for his relationship to be healthy so those trying to fully justify his actions seem real silly to me. Some of his control IS justified (like I mentioned before with the dangerous battle-y situations) but the rest is not and just categorizing one or the other as "completely in the right" is totally missing the fact that they both need to grow in this situation and that Riftan's actions could make it harder for Maxi to grow how she needs to