This is one of those grey areas where ambiguity of what 'shape shifting' really is. I am inclined to agree with Lachdanan because shape shifting rolls require primal urge which shows that the shapeshifter is trying to do something innate to their nature. So to that effect, Body shift definitely should be allowed.

Thousand Form is using Animal Ken though, this shows to me that they are using a bond between them and other species to guide their change. This is clearly outside of the the normal shape shift the Garou are used to doing. With that said though, Protean Form clearly allows...