You didn't see the board on the wall that told which flavors of regular ice cream that were featuring each day? There are always 3 or 4 flavors to choose from. Surely you saw lots of people with dishes/cones of regular ice cream. If not, I can't imagine how you missed that.
We have Room Service breakfast almost every morning on all our cruises. We get as much of anything/everything as we want. If you want 3 muffins, just ask for it. If you want a 3 egg omelet, just say so. If you don't tell them what you want, they cannot know.