I'm currently searching for my first yorkie

(I am also new

to YorkieTalk!). I've emailed and asked a million questions to many breeders for the past month. However, I am concerned about one breeder. Her email states that her yorkie has a different coat of hair (read below):
"Becky is an unregistered yorkie. She is not crossed with any other breed. Becky has a soft coat or some people call it a 'cotton coat'.
She has fluffy soft hair...it is non shedding. This type of coat gives you the 'teddy bear' look."
I've never heard of a purebred Yorkshire Terrier with a soft/cotton/fluffy coat before. Am I wrong to second-guess this breeder? Do you think this yorkie was crossed with another breed?
(See attachment - she is adorable, though!)
D