In all fairness they are responding to something you posted 2 weeks ago.
As for the concept art it is just that, concept art. It doesn't mean that is what will be the final outcome. We all know from past experience that the concept art (at least in modern times) is usually not 100% representative of the final product.
So who knows it might turn out better than current expectations. Obviously there are strong feelings on both sides, and I do see both sides. I just urge everyone to try and see both sides. Doing so may ease the pain for some, and may provide more understanding for others.
A little more peace amongst Disney Fans would be nice.