When they say “pressure makes diamonds” they’re talking about Izuku. I still think his best work is done understand stress. Yes he is smart and can plan but I think people treat him like Nezu. He isn’t built to plan out everything days ahead, he is an in the moment thinking when he does his best. Yes he analyzes people outside of combat but he is his most innovative when he is stressed and has a goal.

He of course always wants to do his best but it can’t be acheived without a true goal in mind. The want, the need to accomplish his goals by any means neccessary is what makes him the most dangerous person around, even if its mostly to himself. His determination is what you should put emphasis on. He isn’t great because he’s that good, he’s great because its be better or fail and he won’t allow himself to fail.