I’ve read and understood your issue and have offered a solution - using a supported method for embedding a Flash player in your application but you rejected this because it has a click-through.
Simply put, /popout is meant to provide a popout for the main website, not in a 3rd party app. In fact, it will even prevent you from embedding it an HTML iframe. (At least it used to in the past, I haven’t tried in the last year or so.) You seem to like to use unsupported methods for doing things based the previous threads on this forum and then complain when they are changed or removed.
If you think there is a bug in /popout then please report it through the proper channels since it’s not an API component: http://www.twitch.tv/bug_reports/new