I appreciate the point in that direction. I see what you mean… it’s not that simple. I wish I was more experienced with js, I might be able to do this fix for you.
It’s a shame that we have to use JS to make changes to the Media Uploader. I’m not sure why they made these changes to the WP 3.5 media uploader, but my old fixes where I could limit the media loop using user capabilities no longer work.
Let me know if/when the gallery addon has this feature added, any ETA yet?