Go dropped its STN-TFS service after 6 months, MyTravelLite dropped its LGW-TFS service after 3 days, its MAN-TFS service after 4 months and its BHX-TFS service after 6 months.
Maybe easyJet can make TFS work (it is only 22% further from London than ATH is), but history isn’t on their side as proven low-cost destinations go.