Here is another Biewer Club that says the Biewer is a distinct breed:
Biewer Breed Club of America The Biewer Breed Club of America, Inc. is the ONLY
American Biewer club that has bred Biewer to Biewer exclusively since the club's inception. We are very proud of our beginnings in the preservation of the purebred Biewer a la Pom Pon. Protection of the Biewers and its original standard are the of the utmost importance to use with intent to hold true to the long term goals of the originator of this exquisite breed. Although the ancestry of the Biewer includes Yorkshire Terrier lines it is through select Biewer to Biewer breeding that has established the Biewer as a distinct breed.
I'm just finding it hard to reconcile the idea that the Biewer DNA testing is falsified, while the Parti's are all on the up and up. What does the main registry for Biewer's in Germany say?