Honestly, when I started working with them I didn't know this. They told me that the name came from a mathematician called Adolf Eugen Fick (german guy, indeed). Now I think that they also knew this other variation but they thought that it would be a good strategy out of Spain (where they're from).
I just made the video and I couldn't change their brand (obviously). Now I'm not sure if I should make a director's cut without that name haha
Anyway, thanks for your comment, I'm glad you like it :)