The bug fixes probably aren't ready yet. The content was probably sitting around on their network, in a folder they forgot about. Heck, how hard could it be to package up the missing P5 figures? You and I could probably do it, if we had to.

And people were complaining about the 25 Mb download. The SR is likely to be much larger than that, if past SRs are any guide. It's probably a good idea to release updates in small pieces.

Part of the problem with Jessi's shoulders is that she's jointed like Posette. Part of it is that her proportions are very weird. This promo image from RDNA shows the problem clearly:

http://www.runtimedna.com/photos/ProductSample4361.jpg

Her upper arms are way too short compared to her lower arms.