It's not usually disrespectful, because when they were asked to make the changes on the mascot they did so how can it be more disrespectful if they satisfied peoples complaints?'
But we don't always know if they are tryin to be a stereo type on purpose try could just be using a item for their mascot to make twit school stand out, or from what 19tchristoffel said, maybe it's something that represents their town, but it can offend other people. But you can never infer that something is a stereo type. You need to get full out facts to help you think about it first.
I say they shouldn't have to change the school mascots! They were the ones that picked it and had every right to keep it as it is! The school isn't purposely trying to be demeaning, some people are proud of it, and the school has changed it, hoping to satisfy peoples' complaints.