Offcourse aryan is allowed to be human , makers will really have to play smart here. But still blaming wife for MC is worst. No woman deserves this especially when she will already be in fragile state of mind.
However, if after this,Imlie becomes obsessed with gudiya , then I can see him snapping and telling her that her self destruction burnt them and their dreams. Then he will act like a human. And then it won't be OOC bcz her saviour complex acted like a spiral that went out of control.
So alot will depend on execution and dialogues.
even if he blames her for the MC, I won't blame him or think of it as a negative. I see it as a break of the fragile love where he was doing all the heavy lifting. at the orphanage scene, it was clear that he wasn't comfortable with going ahead. he gets on her plan rather reluctantly. so when grief strikes, people do get mad and say what they were holding back. sometimes, it is not necessarily rational. if he doesn't realize that she tripped on the ball and rather saw it as a result of her running, then sure he might blame her or even voice it out loud.