This was always going to be the case. EZY aren't interested in serving an island community and have very little idea of the importance of such vital transport links.
Will they be here come Winter? I doubt it and to be honest, they'll not be much of a loss anyway given that they don't exactly undercut Flybe by much, and don't facilitate a day return to the mainland.
They have the wrong aircraft and the wrong product to meet the needs of IOM.