If you think it shouldn't be possible to develop user interfaces that rival the desktop inside the browser, then just say so. If you merely believe existing web standards make this possible without "hacks" like "user-select:none", then you are mistaken.
By the way, I'm a "read with selection" guy myself and I find this behavior on paragraphs of text unacceptable. On the other hand, none of the text on that website is worth reading anyway.