You're giving them too much credit. The real reason the urologists use KnowError is the same reason they opened an IOL: $$ greed $$.
On top 12, 16, 36 biopsies, and special stains they can bill another $400-500 for this. And I'll bet the ones doing it in office probably are doing it on all patients and not just the positive cases. I'm sure they don't want a mix up on a false negative, after all.
