I have never ever heard the HS animated segment called that before. Somebody had better produce some vintage documentation backing that up, or I’m calling bantha poodoo. 😉
I’ve always known it as just “The Faithful Wookiee.” Maybe it’s from the 2011 blu-ray set? I think the animated short was included there as a bonus feature. Or maybe it’s just a fan-name that ended up sticking?
Since D+ is clearly not releasing the whole HS, I wonder if they’ll use the extended version of the animated short. According to this list of true and false urban legends relating to the HS (scroll down to the bottom) there’s a slightly extended cut with different intros and outros (not including Lumpy watching the computer screen) and a fake commercial with aliens in superhero costumes.