
In all my time showing GSD's the only people I met were friendly, welcoming and helpful. It may have helped that when I decided I wanted to show, I studied the breed standard, went to shows and watched and talked to people, then went to a reputable kennel and purchased a puppy with potential for the show ring. I accepted that in order to successfully participate, my puppy had to comply as closely as possible to the breed standard.
Whilst I love longcoats, and indeed grew up with one, I accepted that they had an obvious deviance from the breed standard,
Hair on head, ears, front of legs, paws and toes short, not lovely and feathered as on a longcoat.
Personally I love the look of the white GSD, but again
Blues, livers, albinos, whites (i.e. almost pure white dogs with black noses) and near whites highly undesirable. Yes coat colour is of secondary importance, but it is HIGHLY UNDESIRABLE and as such will be considered a major fault.
IMHO should your friend get a placing at a show, then the chances are that they stood alone and the Judge didn't chose to withhold the place, or indeed had no idea about the breed standard.
I accept that these dogs all make wonderful companions, and when I used to compete in obedience, I did contemplate getting a longcoat as their lovely fluffy bums, can hide a slightly crooked sit!! Instead I put in more work as I knew that I also wanted to show.
The GSD is such a versatile breed, that there is an activity for them all, be it longcoat, standard coat, or any shade of colour.
Sorry to have gone on, but I really feel the GSD fraternity are having a tough time at the moment and whilst I no longer own one, I still feel passionate about the breed.
Good luck to your friend and I hope she continues to enjoy her wonderful companions.