Originally posted by: BOARD_of_command
Because they were under attack. If they focus all their chakra on doing the Jesus, then they would become vulnerable to any sort of attack.
no, they could have easily "done the jesus" and fought back... maybe only naruto would be able to do jutsu's while running... but they would have been running.... running = faster

hell, naruto could have carried idate piggy back... the writers just didn't think about it