But you do try to learn in a competitive fight. You learn how to handle adrenaline and your own stamina, and how to apply techniques against a higher level of resistance, among other things. You're just learning different things than you do in the dojo.This is how I understand training
"the action of teaching a person or animal a particular skill or type of behavior" In competition. Your opponent isn't trying to teach you anything and you aren't trying to learn anything.
This is how I understand competition
"Competition is a rivalry where two or more parties strive for a common goal which cannot be shared: where one's gain is the other's loss."
This is why we don't put beginners in a Pro MMA fight and call it training. It's just not going to happen. Even if it's a light competition of point sparring in the school, it's not training. If the goal is to win by scoring then you'll only use the techniques that you are good at. If you are only allowed to using one technique to see who can win, then you still aren't training. Even with that one technique you won't risk making the mistakes that are necessary for learning and training, because your goal in competition isn't to learn, it's to win.
This is why I always treat sparring as learning and competition as "Bring your A game"