Why does Contour app still use Flash?

The latest Chrome 69 just made using Contour a pain.  It doesn't work in IE half the time and Edge is a complete joke.  Adobe announced the end of life for Flash and its riddled with security vulnerabilities.  HTML5 is the Internet standard and has been for years.  When is Cox going to convert Contour?  If you care about your customers and their safe computing this should be a priority.  Companies that use outdated software are the reason bad actors are winning the cyber war.