I don't really understand the point of that article as summarised at the end.
They say they aren't calling for the image to be taken down or covered, that Disney can be a powerful agent for change, but also that they need to be consistent. That last part implies BlogMickey is suggesting they should erase the image of SotS as they're certainly not putting Brer Rabbit back into Splash Mountain. Personally, I don't see a great deal of inconsistency here as this exhibit is designed to give an historical overview of the company and the image is included as part of a display meant to show the films the company produced during the period of time during which it was made. That's different than basing a whole attraction on the film, having meet-and-greets, etc.