Good question!
While I didn't necessarily work on sbws while at my place of work, I couldn't rationalize that it is unrelated to my day job. Thus I need to get permission from my employer in order to release sbws.
I've already submitted that paperwork and expect to get it back in about 2 weeks.
It is licensed under CC0 and is therefore in the public domain (or will be... depending on how you want to interpret the situation).
Fun side note: little-t-tor itself had to go through the same process.
Sorry for the inconvenience.
Ahhhh! Mystery solved. Makes complete sense - thanks Matt!