Catholics have a focus on the cross the means of roman capital punishment.
I agree he said, forgive them, which says jesus had forgiven but his father needed to be asked. I think that is quite significant. Even with his view of tolerance and forgiveness even he had the idea of the wrathful god that needed to be appeased, so forgive them he asks. At that point wouldnt matter what they did to jesus, the appeasement comes from jesus forgiving us not the father. Did he have to spill blood to show the father, quite possibly, thats how jesus saw it.
Edit: another clue is him saying take this cup from me.