Some just arent worth the trouble.
I would never use a food bowl to feed such a dog, NILF and be very careful. Dog looked quite friendly and submissive in the video I saw.
Probably resource guarder or super sensitive, maybe just a screw loose.
Looks like some ByBs cute mistake.
Such shy animals are in all circumstances an encumbrance to their owner, who must be ashamed of such a dog, and a disgrace to their race. Under no circumstances whatever must they be used for breeding, however noble and striking they may appear.