Tor must be having lots of submissions, then? (Which is understandable. It is Tor, after all.)
I can't figure out why short stories are less popular these days. With e-pubs and handy reading devices, plus our allegedly diminished attention spans, you'd think people would be reading more short stories, not less.
Yeah, that is interesting. You would think short stories would be more popular.
But, like Roxxsmom said, maybe people would prefer longer stories because people want more "meatier" stories or stories that have more...world building or more time spent with the world and characters, thus leading to more immersion?
Even as someone who now has a short attention span (compared to my younger years) and with lots of mediums getting my attention (ie. lots of books, comics, manga, Internet blogs or videos, TV shows, movies, etc), I don't read much short stories when it comes to my reading tastes.
I always feel more absorbed in novels vs novellas and short stories.
I can't explain it, but most short stories/novellas I have read feel too short for me. I just can't get into the characters or world long enough to get attached to them.
I mean, I can read a short story or novella waaaay faster than a TV episode or movie. That's not enough time for me to get used to the characters, or get immersed into a speculative (or secondary).
I'd want to keep reading about the characters (and the worlds in speculative fiction) for a longer time. I can always take breaks as I read, and then return to where I left off. I feel more easily satisfied with a book vs a short story, for the most part. I rarely read short stories that satisfied me (unless it's a fanfic or a doujinshi or manga piece.)
But that's just my personal preference, of course.