I have some dealer who are make a mistake drop the card, as long the card is correct from my perspective. I never snitch them, the cost is getting fired/salary getting 1/3 ~xd remember they working 12 hour shift while just deal card online without any sunlight.
Well, mistakes can happen from any of us. These mistakes are indeed rare. But it has happened in the Stake exclusive table game. And it was a strange behaviour from the card dealer. He had altered the card while everything was visible there (all card numbers). That's why some people are taking it negatively.