Yea I don't like this at all. Putting your school's pride over your player's health and future is one of the biggest things I dislike about school culture. Kanakawa is a draft prospect too so it's even more important to watch his health.
Plus logically speaking, it's only the top of the 4th and Amatsu is doing as well as he can. The biggest problem right now isn't the pitching, it's the bats. If you don't score runs you're not gonna win no matter how good your pitcher is.
This is just pure emotional dumbassery from the coach.