Just based on looking at the puppy pictures alone... I do not believe that they are all full blood yorkie. Plus, notice the grooming of the puppies. They are not shaving their ears, and I do not think that they have been bathed... at all. They have no pictures of adults on their website. You don't know what the puppies are coming out of. If they are breeding dogs that are that far off from the standard, then they shouldn't be doing it at all. Obviously they aren't showing and breeding to try to better the breed. My best advice is to find somebody that is doing just that.
There are so many good, ethical breeders right here. If you have doubts about one, just don't buy from them.
You will find your baby!