I think the progression in baseball is interesting. Beaver baseball became popular initially because it came at a time when there was little success in other programs. Understandable.
Then, because of the "feel good" for Beaver fans, more began paying attention and started to become baseball fans. And, more knowledgeable about baseball. They had to to sustain their "talking points."
I see a parallel with the Ducks. I don't think there are a lot of hard core baseball fans, but the winning this season has drawn attention. Initially there were a lot of bandwagon Beaver fans but success grew the Beavers fans commitment.
The same may happen with Ducks fans. There was a lot of skepticism when Pat Kilkenny, a baseball fan, resurrected the program. I don't think there were a lot of Ducks fans begging for it, or jealous of the Beavs. It was primarily as Kilkenny thing. But, if the program can sustain some success, like the Beavers did, the commitment will grow.