Yup. I bet they haven't tried scooping the crema and tasting it by itself. Since doing that, I now scoop and throw away the crema every time.
I guess it's a matter of taste, and the quality of the coffee, but I love the crema. Personally I think removing it sounds a bit like picking the olives off the pizza.
This is completely false if the espresso is brewed with freshly ground and properly roasted beans with correct temperature and pressure. The texture of the crema also says a lot about the quality of the extraction.