No he said that because Minato told them to attack when he will be charging up to create an opening. Naruto completely forgot that by screaming over the fact his dad got hit. Sasuke was simply reminding him the original plan, but he didn't know Minato dodged the attack. You can even see the exclamation mark when Minato suddenly reappears showing he was surprised
Most likely minato will just flying thunder god off and blow up