There is bound to be some stuff we agree on.
Not really. Odin is shown to be weakened over time and there are some subtextual reasons hinted at too. He is just not as strong at the moment. How strong is Cul when he is seeking redemption?
He is playing against his supposed strengths. He was at his strongest when he was spreading fear and intrigue. Here he is undertaking a mission that has very little to do with fear. Indeed he is seeking to provide hope for the realms. In his flashback interaction with Malekith he kind of justifies his actions as not helping Malekith but he was. He used fear to promote isolation and non-intervention.
Odin called him on this. He understands that the fall of Asgardia was as a direct consequence of Cul’s choices. Odin was certainly not the most interventionist god, but he does understand War. He sends Cul on this mission assuming it will be suicide. They both know it. However, perhaps we are supposed to reassess Odin with this story. Did Odin see this potential in Cul? Is this why Odin was insisting upon Cul way back when they first came back? Odin perhaps glimpsed that deep beneath the scars and the front, that he was something else. He saw a version of himself that he could fix.
On the flip side, was Cul ultimately denying himself and his true nature, the more he emphasised fear. Perhaps he was he ultimately played out. His unrealised strength was being denied. He would have no idea why his strength was failing, that he is not drawing upon his true nature.
It is this kind of pondering and theorising about the deep motivations of damaged characters, that I love about Aaron’s Thor. We have never had this level of depth before. Not to the point we can get lost in the possible subtext. And yet, it is all under the shiny surface of comic book adventure.