I studied the philosophy of science a bit in university and one of my professors did some work on reactions in the scientific community to the Higgs boson discovery. I remember her remarking about how "this is a huge discovery" and "we knew we would see this; it's not a big deal" narratives were popular simultaneously.
I don't actually think those narratives are in strong tension, especially if each were stated precisely. In short, "surprisal" is not the sole measure of importance for a scientific discovery.
