There are tons of interesting archaeological and paleontological discoveries that were found, catalogued, and then forgotten in various storerooms, hallways, etc. Sometimes they are rediscovered and found to be very significant discoveries that have been ignored for a long time. This is one of those stories and this is why the "museum hallway" part is a significant part of the story.
Finding cool stuff in forgotten storage rooms is, to me, an interesting part of science. It's legitimate to report on it I'm pretty sure.