He does say that some of his tips contradict others. Taking the whole article, I don't think he's saying "you cannot depend on the bike if it is a bit rainy", he's giving advice and then saying "if on some occasions it doesn't work for you, don't worry about it." Having said that, it's rather a space-filler of an article really. I think if it wasn't for the coincidence of the name, we wouldn't be paying it much attention.