Im just getting around to reading this article, and I have to disagree. It seems like you are writing this from a visual designers point of view. Honestly, the line between UX and Visual Designers are blurring. With the rise of sketch, UX designers are capable of making solid comps that can be considered an attempt at final design. As a practicing UX designer, I only work in sketch, with the correct fonts and colors for the brand I’m designing for. WHO WOULDN’T DO THAT? Going back to the nature of each other disciplines, UX designers are tasked with making the product usable. I’ve often found that some visual designers lack the foresight to champion usability over a clean layout. Remember, each is hired for a specific reason. UX designers establish functionality and Visual Designers bring it to life. It would be wasted to have the visual designer undermine everything that has been established within the UX framework. Now, thats not to say that things cant be changed, but collaboration is key. I often never start a project without consulting Visual Design and TECH first, usually inviting both parties to the “white-boarding” sessions. In terms f functionality, NOTHING is ever “Signed off on/locked.” If all parties agree that it will be a better user experience, then all parties have a responsibility to bring that to the client/team so it can be rectified. Usually, design decisions in UX are based off of stats/facts not opinions, at least they SHOULD be. Those stats may not be the most sexy thing, but it paints a clear picture of how a product should be used. As a UX designer, we learn to have empathy to that process and that truth, no matter the outcome. Something i think more people should realize.