I agree that I thought his fans would keep him in longer as well. He was totally an inspiration (regardless of actual dance talent at his age).
Would an elder of his status have been voted off so soon in any other country??
As someone here said, perhaps his fans -or those showing some respect for him, only call in and don't do the other methods as easily.
Nothing against Cloris, but I recall that she was kept on for quite some time.