I think a lot of people don't realized how rude they can be when commenting on someone else dog.
Once, I was at the pet store with Lucy and those 2 ladies pass by and comment about Lucy: "oh she's mix for sure she got a long tail". I didn't say anything but inside my head I was laughing at them...
When you don't know what you are taking about, it is sometimes best to keep your opinion for yourself...
Your dog is too cute for word... so don't worry about those idiot. Have a great day.