Not forgetting that the vast bulk of these seats are in the summer season. Who's going to provide these for 6 months per year and then leave their aircraft sitting around all winter doing nothing?
The infamous summer/winter imbalance is the bain of the Charter Airline or more accurately the bain of the Tour Operator. Easy and others could at best provide some marginal lift in the summer, but the lift just isn't out there to replace TOMs 61 aircraft and TCs 31.