I've noticed that if you actually click on individual feeds, you will see the new stories that are available. You just can't see whether there are any new stories or not unless you click on every single feed individually.
That's true for some on your list, but not most of them, it appears, and even so, running Insta-Fetch may pull in more on that feed. Thank goodness for Sam's foresight in creating the Insta-Fetch feature ... I guess if nothing else it also forces an examination of which feeds one may feel are the most vital. I would imagine that if Same knew this was happening, he is concerned, but ... at least there is a workaround for it.
You can also use the Workaround to update the feed once you have it in, obviously.