I see there are already multiple people busy Motte N Baileying you. Don't you like goodness and light, gatvol? Why don't you like progress, gatvol? Why? All we're asking for is good. What's wrong with good?
Well... yes. The main work described in the article is a work of fiction. i.e. a work of imagination, which means the author listens to his own inner muse. The protagonist is fiction, his experiences are fiction, his story is fiction. Lies, simply, but (if we're lucky) entertaining lies. The author is under no obligation to listen to others (especially their 'truths',) and may in fact harm his work by listening to others rather than trust his own sense of story. If he's an obligation to anyone, it'll be to the buying (and reading) public who'll decide the fate of his work.
In answer to your second question: no, not really. The only thing to learn is that, like a certain North Pole elf, Tonto is a work of fiction. As is the Lone Ranger. As are all the bad guys they hunted, the sheriffs they met, the girls they wooed. Even the silver bullets came out of someone else's imagination.