Let me be as clear as I can be: the iOS multitasking bar does not contain “a list of all running apps”. It contains “a list of recently used apps”. The user never has to manage background tasks on iOS.
One thing to note, however, is that removing apps from the multitasking bar is a very good way to close an app experiencing problems. I have to do this with the Netflix app all the time. The app frequently freezes on a particular view. Unless I remove the app from the multitasking bar, the next time I access the app, it will attempt to return to that same view.
