Two reasons I'm said is that my son actually does believe (he's 4) its Mickey's house and as he explained "Mickey's working that's why he's not home"
So I'm glad this land maybe over stayed its temp. welcome and hope at least the houses find a home somewhere at DHS (animation area?)
The second reason is that with it closing all those guests are now going to spread thru out the MK thus increasing wait times and congestion until the fantasyland project.
Obviously its a price you have to pay for expansion, but that was one of the side benefits of that portion of the park