The one who actually got hurt the most in the Stein arc was Iida’s relevance, since he was the main focus of the arc. Unlike Bakugo and Todoroki from the previous arcs who got the spotlight and were not shafted afterwards, Iida was never again relevant. Just like Stein his plot thread went nowhere. What instead went somewhere for a while was the revelation of the use of quirks not being allowed in public without a license. Although it makes sense why you shouldn’t use superpowers irresponsibly, the way it is presented makes absolutely no sense. We constantly see everyone using quirks, willingly or unwillingly. Bakugo in specific used it to constantly torture children and he got never punished. Also, if someone’s quirk is passive and he can’t turn it off, why is it his fault when it’s in effect? Why can’t you use your quirk to defend yourself if your life is in danger? It’s part of you so it’s not like you bought a gun without a permit, and protecting your life is the most basic right any living being has. Also, why the shit is everyone acting like they didn’t know it up until this dogman said it? They all act like it’s the first time they hear it when it’s supposed to be a law everyone follows for centuries. They also went to school for a dozen years and are now part of a hero academy. How is it possible to not know about it? The answer is simple; it’s a retcon. Horicoshit hadn’t thought about it until now, and he needed a reason for why villains are created. It’s something important he didn’t show in the setting from the very beginning. Because he’s a terrible writer.
Anyways, like everything else there are no negative consequences for Deku doing something wrong. They overlook the whole incident just so the protagonist can get away unpunished. What a heroic thing to do. And before you say all classic heroes constantly break the law, they are not public servants who do it for the fame and money. They are vigilantes, something heroes in this setting are not. Thus Deku and Bakugo getting away with it is plain plot armor. Get used to it, since Horikoshit doesn’t have the balls to actually do something with his own ideas.