How did you not see that coming. Of all the things Oro did thus far that is the one I absolutely knew was going to happen. He's been doing that since we first saw him, remember his fight against Sarutobi or the Sannin battle. Sure the sheer scale and magnitude were different but its the same attack.
Now the one thing I didn't see coming was the punch straight to Naruto's face. Oro is a master of ninjutsu and mostly only uses taijutsu for evasion and even so its his own weird brand of taijutsu. After everything else that happened I really didn't think he would just punch him to the face, the irony was not lost on my part.