Downvote. The purpose of the piece, I think, is to relate his experience. And this is certainly a part of the experience, perhaps an important part because it

Downvote. The purpose of the piece, I think, is to relate his experience. And this is certainly a part of the experience, perhaps an important part because it illustrates that the experiment does have some effect on others. In the bigger picture: why do we write? Is it that we're trying to fool others into accepting an idea? Or because we want to help them understand an idea? I can't see any reason to omit the sentence, short of being deceitful.