Its was as clear of a win as you can get for Shogun, aside from the one flurry in round 1 Rogerio really had nothing for him, a sub attempt at the end of round 3 but thats it. Round 2 was all Shogun and in round 3 Shogun not only landed double the strikes, but he also landed double the connection percentage. Shoguns round 3 was his best round standing, he landed more sig strikes in round 3 then Rogerio did in both rounds 2 and 3 combined. Not only that, it was how Shogun mixed it up with punches, leg kicks and body kicks in that last round and went for it being the aggressor and controlling the octagon.
I suggest watching the fight again