In thinking about it, I'm mostly talking about "Podcasts / Download new episodes", Select All and Select None buttons. There were a number of new episodes that I didn't want to listen to on my commute (or just then) but wanted to keep marked as new episodes for the next long car trip with the family or perhaps a later commute. So my list of new episodes would grow long & I'd want these "save for later" items to keep appearing. Not having Select All and Select None makes it harder to play these kinds of games. But having the ability to tag an episode as "Download Later" or something would probably be a superior solution. Not a big deal, but is that worth my creating a feature request?
BTW, I am also experiencing this bug. Everyone works fine for single-select, but for multi-select I can't Download or Play episodes or anything. My media player is "User-configured (panucci --queue)".