The list from bigwigs ra-den assist is usefull even in 10 man. There's no reason not to use it at least. Even if it's easier to manage on 10 man, it still makes it even easier than without it.
Any argument I can see in this thread against it is "hurr durr it's easy enough without it anyway derp", which is a pretty shitty argument. Maybe these guys should raid with zero addons, since it's so easy.