Few industries are covered in such obsessive detail as aviation. Whether it’s the news-breaking X account @JonNYC, Dan Eleff’s DansDeals or Gary Leff’s smart, well-informed blog “View From the Wing,” every schedule change, union dispute or customer service issue is unearthed, dissected and debated. Traditional media rarely keep up. So it went with the latest controversy surrounding United Airlines, which calls itself Chicago’s Hometown Airline and has thousands of employees in Willis Tower and Arlington Heights. United, it’s clear, is playing footsie with Denver, a city where it has both exten…