Jet 22, how very cynical of you! There are plenty of airports for RYR to choose from in that part of the world.
Perhaps, as has been pointed out elsewhere, lots of short flights get more bums on seats, hence maximising revenue. Longer flights are only recently becoming the norm for RYR, Tenerife and Morroco, so perhaps in the future you might well see flights to these Eastern destinations.
One reason Greek flights are so paltry is that the Greeks insist all flights touch down in the new and expensive Athens airport before or after going on to any other airport in Greece.
Cyprus is well served by the likes of Monarch and First Choice etc. but to go there also means the aircraft have a maximum of 2 rotations a day. RYR like 4 or even 5 rotations a day per aircraft.