> And the abuse after he received despite it being an easy mistake that the culture encourages people to make.

I believe that that was in part simply people defending their reality.

Because if it's not the maintainers fault, then why did it fail? What are the implications of that? What does it mean for me personally? Do I have to do something differently? Do I have to change my assumptions?

People do not like these feelings. They want to simply push them away. The easiest way of doing so is blaming that guy and being done with the negative emotion.

Most people do suck at this whole "being human" business.