This is a nice, idealistic view to have, and it sure sounds hard to disagree with--who thinks content should be censored?--but it doesn't really reflect the real world. Content creators make thousands of decisions in everything they do based on how they think their audience will react to it, and design and edit their works to avoid turning off the audience entirely. This might be as simple as cutting an animation down several frames so it doesn't appear as violent, or toning down sound effects or music because they're proving too intense for players. And it might mean cutting entire scenes if they're not accomplishing what the creators intend them to, but that's not censorship, that's just dealing with the reality of struggling to create something with an intended effect.
Most creators' default position is not to make something as extreme as possible; doing so can often lose an audience entirely. Rather, they usually have some goal or theme or feel in mind that they want to get at, and hammer away at the finer details of a work until they think they've made something that embodies that. And the ultimate judge of whether they succeed isn't the creator, it's the audience. So while it sounds nice to say creators should do whatever they want, that leads to games like Derek Smart's, and it's naive to think that nothing creators do is or should be influenced by how they think the audience will react to it.