As far as you are concerned, if success is a sufficient condition for a hero, that is, as long as a person succeeds, he is a hero. The necessary condition is that as long as he is a hero, he must be successful. The subtext of the Wuhan issue is that Cinda is caught in an absolute debate and ignores the existence of special circumstances.
Because your description is not very clear, I can only say my opinion. If we want to answer, we can say: of course, we can't just talk about heroes by success or failure, but what is certain is that heroes are outstanding in at least one aspect.
In an argument, it is much more difficult to prove one thing than to overturn it. Because proof needs to prove that everything is true, and to overthrow him, just give a counterexample. Therefore, the argumentation process must be rigorous, and the conclusion must leave room for special circumstances.
As a novice, I recommend you to watch 1999 International Debate Competition for College Students, which is very classic and will benefit you a lot. For example, it's easier said than done, which is more important, natural science or social science, to develop knowledge economy.
The above is purely a personal opinion, I hope I can help you.