I just saw it again and I need to correct myself real fast. There are actually 9 fan made animations in the film not 5. On of the ones I didn't mention was the one by Paganomation. I haven't been able to figure out who made the other ones. I also noticed a thing at the end of the credits clarifying that they have the right to use the work of others (or something like that) which they used in the film. I got a legal notice in the credits, sure makes me feel appreciated.
On the topic of the stop motion in the film, the above mentioned
Spoiler (click to read)
part where the Millennium Falcon gets eaten by the worm
really looks like stop motion, but I don't think the other mini scale stuff is, the lighting and movement didn't seem right. Another thing I noticed is that in some really close shots, like the second close up of Wyldstyle in her reveal scene, they animated in pieces of dust for one or two frames, something we are all familiar with as a common problem in brickfilms, I thought that was really cool.