Yes I'd rather stories were kept reasonably short where it is not original text, the code examples in line here are a little bit too much - a summary paragraph of the major changes would suffice iris-go, rather than pasting everything in here. I think the last few paragraphs with the links to examples are the most interesting bit in a way.
Re MVC support, I'm not sure this is a big selling point, to me it goes a little against the grain of Go to introduce abstractions like that - I prefer to break down web applications by the resources involved (things like users, posts etc).