Im pretty sure that Easyjet could do without the expense of feeder type services that the bigger hub airlines use. It would be an added cost particularly if flights are delayed etc and EZY have to take on the cost and hassle, as you point out MUFC-Fan, would they not be obliged to offer overnight accomodation for people who have missed flights etc?
From an outsiders perspective surely they can just carry on selling seperate flights and its up to the passenger to make sure they check in etc...