It kind of feels like Izuku won this fight despite losing it and turning all purple. He won the hero part of it if nothing else. He even healed Todoroki's mind partially. The audience was also majorly impressed simply because he could offer such a major resistance and finally forced Todoroki to use fire. Not to mention the last explosion forcing even the staff to interfere. Still, while Todoroki gave the impression of being already more ready for hero work than many pro heroes, Izuku surely won't give that impression by his self-mutilating power use.

Talking about Izuku's lack of interest in control is useless talk at this point considering that has been evident from the beginning of the show. He never gave it any thought. It's like he assumes one day he will just wake up in the morning perfectly in control of the power.