I think the story was about the precise motion and accuracy of the ear movements, which was trying to mimic the real dog ears I maybe wrong, it's been long time since I read it
Well the tldr is that someone out there is working on accessibility tech with so much passion about realistic ear movements that it's pushing the technology as a whole further
That reminds me of how the 3D animation industry was pushed forward leaps and bounds by people wanting to animate Elizabeth from Bioshock, uh, doing things she never did in the game