Oro was such a joke back in the final days of his reign as the lead villain...... for him to come back and try and do anything after Sasuke already killed him would make little sense.

I agree tho his complete ease and compliance with everything..... without even so much as a hint at still being a crazy douchebag was kindof strange. I would have preferred some different dialogue out of him there, but it doesn't bother me enough to not enjoy these final moments of our journey reading this manga.