I don't know about that, many of those stars in the photo are larger blue hued stars, which may not be conducive to the formation of planets. And for another, there is only one Mars in the solar system, and since we lack data on all other planets besides the ones in our systems, its best to assume that most stars only have one Mars type planet (desert, subsurface water ice, former ocean etc). Red dwarves (stars that are most likely to form planets of low mass) are pretty much invisible in this picture, due to their faintness.