His intent was never to take them out. Read DR again.
The thing is aramaki never went all out either, he casually damaged lunarian defense and then wasnt even serious vs scrubs momo and yamato, when he decided he is getting serioua shanks stopped him.
he took Adv.CoC attack for his breakfast while Fuji got thrown by G3 punch.
Not saying aramaki is miles ahead but he just has better feats at this point of the story, fuji needs new feats