that was an emergency training regiment
but yeah, I understand what you mean. But this is going from 0 to being able to last 10 minutes with a cadet rep. He's desperate enough to believe anything. The problem is what would Tatenashi teach him?
Chifuyu can probably use any weapon, but her specialty is swordplay. That's why the initial idea was to have Aries use a sword. Tate's case... hand to hand combat? a lance?