Why space-sims need to be revived

Plagued Gamer writes: "If there’s something in the gaming world to get all riled up about it should be, without question, the total abandonment of the space-sim genre. Taking a look back, Freespace, Wing Commander, and TIE Fighter are all notable, successful titles that did their fair share to optimize contemporary gaming. Why then, has no one successfully sought a return to this glorious form?"