It's prolly cos Oro stole a bloodline body so he can do those stuff and he'strying to learn every jutsu ever made so he has already an extensive library of jutsus to his belt, possibly more than Kakashi.

Coming back to the topic, I reckon the byakugan is the strongest blood line. I reckon Neji or his dad will face off against a Uchiha soon and we'll see Neji using every sharingan counter in the book and then he'll mention again why his byakugan is better than the sharingan. It will be the coolness. Again just a thought so no flaming.