I'm sorry, I just don't see where the problem is. To take two applications that I run almost continuously, an editor and a browser, both have multiple instances of task--- both shown to me as windows as it happens. No problem in either opening or closing them. The mechanism is as old as windowed operating systems; find the menu item that says close or click in the corner (or it's analogue.) This action scales; do the same thing if I wish to close the app (although as was pointed out in passing in the article, this action is decreasing.) Is there anyone reading this that is confused over these actions? I really don't think so. Instead of the disparaging remark about cargo-cult interface design, maybe it was a case of the designers understanding that there are some wheels that need to be shared and not re-invented. Given the time these methods have been in place and in use, it doesn't seem like a good thing to change without a much more compelling argument.